Occupations in Riverpark, Oxnard, California (Neighborhood)

Occupations#1

Percentage of the civilian employed population aged 16 and older.
Scope: population of Oxnard and Riverpark
Riverpark
Oxnard
0%5%10%CountAdministrativeSales and RelatedBusiness1ProductionManagementEducation2Computers & MathPersonal CareHealthcare3FacilitiesConstruction4Farming5Food ServiceEngineering6Repair7Material MovingTransportationLaw EnforcementHealth TechniciansEntertainment8Healthcare SupportSocial ServiceFire FightingLegalScience14.000493%12.794429%14.000493%14.0%30330413.951195%9.797280%13.951195%14.0%3023038.183387%3.152845%8.183387%8.2%1771787.813655%8.938847%7.813655%7.8%1691707.591817%5.229494%7.591817%7.6%1641655.595267%3.362193%5.595267%5.6%1215.052995%1.201384%5.052995%5.1%1091104.165640%4.182754%4.165640%4.2%904.017747%2.101897%4.017747%4.0%873.968450%5.691322%3.968450%4.0%863.919152%5.393606%3.919152%3.9%853.648016%12.842821%3.648016%3.6%792.957851%5.287354%2.957851%3.0%642.464876%1.449657%2.464876%2.5%532.267685%3.187561%2.267685%2.3%491.996549%4.029161%1.996549%2.0%431.897954%3.040281%1.897954%1.9%411.306384%0.438684%1.306384%1.3%281.232438%1.594833%1.232438%1.2%26271.084545%1.077248%1.084545%1.1%23240.936653%2.090325%0.936653%0.9%200.739463%1.206644%0.739463%0.7%160.640868%0.918396%0.640868%0.6%13140.369731%0.444996%0.369731%0.4%80.197190%0.545988%0.197190%0.2%4
Count number of people employed in given occupation
1Business and finance 2Education, training, and library 3Health diagnosing and treating practitioners 4Construction and extraction 5Farming, fishing, and forestry 6Engineering and architecture 7Installation, maintenance, and repair 8Arts, design, entertainment, sports, and media

Relative Occupations#2

Percentage more or less common in Riverpark than in Oxnard, among the civilian employed population aged 16 and older.
Scope: population of Oxnard and Riverpark
Less Common
More Common
0%100%200%300%%ref.Computers & MathLaw EnforcementBusiness1Healthcare2Engineering3Education4ManagementSales and RelatedAdministrativeEntertainment5Personal CareProductionLegalHealth TechniciansConstruction6Repair7Fire FightingFacilitiesTransportationSocial ServiceFood ServiceMaterial MovingHealthcare SupportScienceFarming8320.597661%320.597661%320.6%5.053%5.05%1.201%1.20%197.796035%197.796035%197.8%1.306%1.31%0.439%0.44%159.555620%159.555620%159.6%8.183%8.18%3.153%3.15%91.148642%91.148642%91.1%4.018%4.02%2.102%2.10%70.031693%70.031693%70.0%2.465%2.46%1.450%1.45%66.417189%66.417189%66.4%5.595%5.60%3.362%3.36%45.173066%45.173066%45.2%7.592%7.59%5.229%5.23%42.398667%42.398667%42.4%13.951%14.0%9.797%9.80%9.426481%9.426481%9.4%14.000%14.0%12.794%12.8%0.677359%0.677359%0.7%1.085%1.08%1.077%1.08%-0.409153%-0.409153%0.4%4.166%4.17%4.183%4.18%-12.587661%-12.587661%12.6%7.814%7.81%8.939%8.94%-16.913591%-16.913591%16.9%0.370%0.37%0.445%0.44%-22.723063%-22.723063%22.7%1.232%1.23%1.595%1.59%-27.337071%-27.337071%27.3%3.919%3.92%5.394%5.39%-28.858291%-28.858291%28.9%2.268%2.27%3.188%3.19%-30.218837%-30.218837%30.2%0.641%0.64%0.918%0.92%-30.271920%-30.271920%30.3%3.968%3.97%5.691%5.69%-37.573070%-37.573070%37.6%1.898%1.90%3.040%3.04%-38.717435%-38.717435%38.7%0.739%0.74%1.207%1.21%-44.058017%-44.058017%44.1%2.958%2.96%5.287%5.29%-50.447526%-50.447526%50.4%1.997%2.00%4.029%4.03%-55.191044%-55.191044%55.2%0.937%0.94%2.090%2.09%-63.883827%-63.883827%63.9%0.197%0.20%0.546%0.55%-71.594902%-71.594902%71.6%3.648%3.65%12.843%12.8%
% percentage of occupation in Riverpark
ref. percentage of occupation in Oxnard
1Business and finance 2Health diagnosing and treating practitioners 3Engineering and architecture 4Education, training, and library 5Arts, design, entertainment, sports, and media 6Construction and extraction 7Installation, maintenance, and repair 8Farming, fishing, and forestry

Sex Ratio by Occupation#3

Sex ratio by occupation among the civilian employed population aged 16 and older.
Scope: population of Oxnard and Riverpark
Female Male
Oxnard
Riverpark
2x1x0x1x2xFMManagementFacilitiesEntertainment1Computers & MathEngineering2All OccupationsFood ServiceSales and RelatedFarming3Business4AdministrativeEducation5-1.000000x-1.000000x-1.000000x2.756098x1.213268x2.756098x2.76x4344120121-1.000000x-1.000000x-1.000000x2.744186x2.508431x2.744186x2.74x2363-1.000000x-1.178723x-1.000000x2.384615x1.000000x2.384615x2.38x671617-1.000000x-1.000000x-1.000000x1.928571x3.443580x1.928571x1.93x3772-1.000000x-1.000000x-1.000000x1.564103x3.175758x1.564103x1.56x20213233-1.000000x-1.000000x-1.000000x1.117432x1.261539x1.117432x1.12x1,0241,0251,145-1.000000x-1.000000x-1.000000x1.068966x1.198600x1.068966x1.07x3133-1.398305x-1.109878x-1.398305x1.40x1.000000x1.000000x1.000000x176177126-1.596491x-1.000000x-1.596491x1.60x1.000000x1.810313x1.000000x484930-1.614173x-1.585850x-1.614173x1.61x1.000000x1.000000x1.000000x1091106768-1.666667x-1.998521x-1.666667x1.67x1.000000x1.000000x1.000000x189190113114-2.067568x-2.367756x-2.067568x2.07x1.000000x1.000000x1.000000x81823940
F number of females employed in given occupation
M number of males employed in given occupation
1Arts, design, entertainment, sports, and media 2Engineering and architecture 3Farming, fishing, and forestry 4Business and finance 5Education, training, and library

Part Timers by Occupation#4

Part time and seasonal workers as a percentage of total workforce within an occupation.
Scope: population of Oxnard and Riverpark
Riverpark
Oxnard
0%20%40%60%80%PartFullFood ServiceFire FightingSocial ServiceEntertainment1Education2Farming3Personal CareSales and RelatedHealth TechniciansAdministrativeFacilitiesAll OccupationsProductionHealthcare4ManagementMaterial MovingComputers & MathConstruction5Business6Engineering7ScienceLegalHealthcare SupportLaw EnforcementRepair8Transportation83.333333%50.397931%83.333333%83.3%53101176.923077%53.264605%76.923077%76.9%1011366.666667%25.196164%66.666667%66.7%1011563.636364%37.011719%63.636364%63.6%14158957.268722%62.421777%57.268722%57.3%6970515253.378378%53.251966%53.378378%53.4%42363752.071006%50.176056%52.071006%52.1%474338.869258%39.149576%38.869258%38.9%11711818536.000000%23.284960%36.000000%36.0%9101727.992958%33.037329%27.992958%28.0%8521821926.708075%27.818854%26.708075%26.7%236326.103032%34.294160%26.103032%26.1%5661,6031,60418.296530%20.630811%18.296530%18.3%3113813917.791411%24.674675%17.791411%17.8%1516717211.038961%13.840274%11.038961%11.0%181461479.876543%33.681462%9.876543%9.9%4397.804878%19.877408%7.804878%7.8%891015.660377%37.994929%5.660377%5.7%45800.000000%0.000000%0.0%15.148482%01771780.000000%0.000000%0.0%11.465893%0530.000000%0.000000%0.0%18.497110%040.000000%0.000000%0.0%18.439716%080.000000%0.000000%0.0%30.095622%0200.000000%0.000000%0.0%1.199041%0280.000000%0.000000%0.0%14.356436%0490.000000%0.000000%0.0%24.117647%041
Part number of part time workers employed in given occupation
Full number of full time workers employed in given occupation
1Arts, design, entertainment, sports, and media 2Education, training, and library 3Farming, fishing, and forestry 4Health diagnosing and treating practitioners 5Construction and extraction 6Business and finance 7Engineering and architecture 8Installation, maintenance, and repair

Median Income by Occupation#5

For the full-time year-round civilian employed population aged 16 and older.
Scope: population of Oxnard and Riverpark
Riverpark
Oxnard
$0k$50k$100k%CountHealthcare1TransportationComputers & MathFacilitiesManagementBusiness2All OccupationsRepair3AdministrativeEducation4Healthcare SupportEngineering5Construction6ProductionSales and RelatedPersonal CareFarming7Material Moving$103,077.000000$84,364.000000$103,077.000000$103.1k4.018%4.02%87$100,032.000000$40,296.000000$100,032.000000$100.0k1.898%1.90%41$78,403.000000$80,558.000000$78,403.000000$78.4k5.053%5.05%109110$66,100.000000$28,847.000000$66,100.000000$66.1k3.968%3.97%86$65,625.000000$57,019.000000$65,625.000000$65.6k7.592%7.59%164165$54,615.000000$53,183.000000$54,615.000000$54.6k8.183%8.18%177178$42,247.000000$34,784.000000$42,247.000000$42.2k100.000%100%2,170$38,415.000000$41,360.000000$38,415.000000$38.4k2.268%2.27%49$37,917.000000$36,574.000000$37,917.000000$37.9k14.000%14.0%303304$37,212.000000$50,074.000000$37,212.000000$37.2k5.595%5.60%121$36,447.000000$28,883.000000$36,447.000000$36.4k0.937%0.94%20$31,810.000000$72,558.000000$31,810.000000$31.8k2.465%2.46%53$27,071.000000$40,265.000000$27,071.000000$27.1k3.919%3.92%85$24,453.000000$28,758.000000$24,453.000000$24.5k7.814%7.81%169170$24,167.000000$35,419.000000$24,167.000000$24.2k13.951%14.0%302303$16,875.000000$23,128.000000$16,875.000000$16.9k4.166%4.17%90$10,380.000000$20,197.000000$10,380.000000$10.4k3.648%3.65%79$9,362.000000$24,317.000000$9,362.000000$9.4k1.997%2.00%43
% percent of the workforce employed in given occupation
Count number of people employed in given occupation
1Health diagnosing and treating practitioners 2Business and finance 3Installation, maintenance, and repair 4Education, training, and library 5Engineering and architecture 6Construction and extraction 7Farming, fishing, and forestry 8Arts, design, entertainment, sports, and media

Occupations by Neighborhood in Oxnard

There are 56 neighborhoods in Oxnard. This section compares Riverpark to all of the neighborhoods in Oxnard and to those entities that contain or substantially overlap with Riverpark.

Management Occupations by Neighborhood#6

Percentage of the civilian employed population aged 16 and older.
Scope: population of Riverpark, selected other neighborhoods in Oxnard, and entities that contain Riverpark
0%5%10%15%20%Count#Silver Strand NeighborhoodSilver StrandHollywood by the Sea NeighborhoodHollywood by the …Oxnard Shores NeighborhoodOxnard ShoresChannel Islands NeighborhoodChannel IssOxnard Dunes NeighborhoodOxnard DunesMarina NeighborhoodMarinaOxnard, Thousand Oaks, and Ventura Metro AreaOxnard AreaVentura CountyVenturaWindsor North River Ridge NeighborhoodWindsor N Riv RdgPacificWestCaliforniaOxnard Pacific NeighborhoodOxnard PacificUnited States of AmericaUnited StatesOrchard NeighborhoodOrchardCypress NeighborhoodCypressHobson Park East NeighborhoodHobson Pk EHobson Park Wesk NeighborhoodHobson Pk WeskVia Marina NeighborhoodVia MarinaSea View Estates NeighborhoodSea Vw Ests005004Tract 005004Riverpark NeighborhoodRiverparkEl Rio West NeighborhoodEl Rio WestOxnard Union High School DistrictOxnardZIP Code 93036ZIP 93036Cabrillo NeighborhoodCabrilloTeal Club NeighborhoodTeal ClubSouth Bank NeighborhoodSouth BankWest Village NeighborhoodWest VillageRio Lindo NeighborhoodRio LindoEast Village NeighborhoodEast VillageMarina West NeighborhoodMarina WestRio Elementary School DistrictRioSierra Linda NeighborhoodSierra LindaPleasant Valley Village NeighborhoodPleasant Vly VlgOxnardLemonwood/Eastmont NeighborhoodLemonwood/East…Fremont South NeighborhoodFremont SouthWilson NeighborhoodWilsonRose Park NeighborhoodRose ParkEl Rio NeighborhoodEl RioHill Street NeighborhoodHill StreetBryce Canyon South NeighborhoodBryce Canyon SLa Colonia NeighborhoodLa ColoniaCollege Park NeighborhoodCollege ParkFremont North NeighborhoodFremont NorthFive Points Northeast NeighborhoodFive Points NEOrmond Beach NeighborhoodOrmond BeachBartolo Square North NeighborhoodBartolo Sq NBartolo Square South NeighborhoodBartolo Sq SSouth Winds NeighborhoodSouth WindsNyeland Acres NeighborhoodNyeland Acres20.025784%20.025784%20.0%236237120.025784%20.025784%20.0%191192214.005190%14.005190%14.0%254255313.829457%13.829457%13.8%175176413.829457%13.829457%13.8%2930512.785388%12.785388%12.8%358610.981281%10.981281%11.0%44,27444.3k10.981281%10.981281%11.0%44,27444.3k10.724332%10.724332%10.7%171710.351683%10.351683%10.4%2,459,5242.46M10.273445%10.273445%10.3%3,534,0223.53M10.271448%10.271448%10.3%1,805,4271.81M10.224090%10.224090%10.2%54810.035605%10.035605%10.0%14,852,82814.9M9.534620%9.534620%9.5%14614798.902781%8.902781%8.9%151108.057916%8.057916%8.1%149118.057916%8.057916%8.1%106127.755842%7.755842%7.8%205137.755842%7.755842%7.8%157158147.591817%7.591817%7.6%3087.591817%7.591817%7.6%164165157.591817%7.591817%7.6%5051167.490496%7.490496%7.5%11,36911.4k6.540199%6.540199%6.5%1,4486.430155%6.430155%6.4%169176.430155%6.430155%6.4%0186.259241%6.259241%6.3%165196.084899%6.084899%6.1%228229206.084899%6.084899%6.1%159216.034713%6.034713%6.0%196226.008261%6.008261%6.0%166235.908815%5.908815%5.9%1,1695.324459%5.324459%5.3%119245.275229%5.275229%5.3%44255.229494%5.229494%5.2%4,9714.196355%4.196355%4.2%130131263.837118%3.837118%3.8%27273.836799%3.836799%3.8%7273283.492376%3.492376%3.5%6768293.408481%3.408481%3.4%119303.290917%3.290917%3.3%3334322.997319%2.997319%3.0%31362.995576%2.995576%3.0%124125372.981651%2.981651%3.0%20402.628062%2.628062%2.6%4142441.888829%1.888829%1.9%1314481.611498%1.611498%1.6%0521.465690%1.465690%1.5%2223531.465690%1.465690%1.5%20541.206273%1.206273%1.2%3940550.803859%0.803859%0.8%956

Management Income by Neighborhood#31

Median income for the full-time year-round civilian employed population aged 16 and older.
Scope: population of Riverpark, selected other neighborhoods in Oxnard, and entities that contain Riverpark
$0k$50k$100k%Count#Windsor North River Ridge NeighborhoodWindsor N Riv RdgChannel Islands NeighborhoodChannel IssOxnard Dunes NeighborhoodOxnard DunesOxnard Shores NeighborhoodOxnard ShoresHill Street NeighborhoodHill StreetOxnard, Thousand Oaks, and Ventura Metro AreaOxnard AreaVentura CountyVenturaMarina NeighborhoodMarinaRedwood NeighborhoodRedwoodSea Air NeighborhoodSea AirCaliforniaWest Village NeighborhoodWest VillageRio Lindo NeighborhoodRio LindoPacificVia Marina NeighborhoodVia MarinaSea View Estates NeighborhoodSea Vw EstsWestCarriage Square NeighborhoodCarriage SqFremont North NeighborhoodFremont NorthUnited States of AmericaUnited StatesOxnard Union High School DistrictOxnardTerrace Estates NeighborhoodTer EstsCollege Park NeighborhoodCollege ParkEast Village NeighborhoodEast Village005004Tract 005004Riverpark NeighborhoodRiverparkEl Rio West NeighborhoodEl Rio WestMarina West NeighborhoodMarina WestKamala Park NeighborhoodKamala ParkCollege Estates NeighborhoodCollege EstsSilver Strand NeighborhoodSilver StrandHollywood by the Sea NeighborhoodHollywood by the …El Rio NeighborhoodEl RioOxnardCypress NeighborhoodCypressBryce Canyon South NeighborhoodBryce Canyon SZIP Code 93036ZIP 93036Hobson Park Wesk NeighborhoodHobson Pk WeskHobson Park East NeighborhoodHobson Pk EBryce Canyon North NeighborhoodBryce Canyon NCal-Gisler NeighborhoodCal-GislerRio Elementary School DistrictRioLa Colonia NeighborhoodLa ColoniaBartolo Square North NeighborhoodBartolo Sq NBlackstock North NeighborhoodBlackstock NTeal Club NeighborhoodTeal ClubPleasant Valley Village NeighborhoodPleasant Vly VlgTierra Vista NeighborhoodTierra VistaVilla Capri NeighborhoodVilla CapriMar Vista NeighborhoodMar VistaOrmond Beach NeighborhoodOrmond Beach$105,508.000000$105,508.000000$105.5k10.724%10.7%1711$101,786.000000$101,786.000000$101.8k13.829%13.8%1751762$101,786.000000$101,786.000000$101.8k13.829%13.8%29303$100,274.278745$100,274.278745$100.3k14.005%14.0%2542554$90,893.000000$90,893.000000$90.9k3.291%3.29%33345$90,092.000000$90,092.000000$90.1k10.981%11.0%44,27444.3k$90,092.000000$90,092.000000$90.1k10.981%11.0%44,27444.3k$88,318.000000$88,318.000000$88.3k12.785%12.8%3586$84,861.000000$84,861.000000$84.9k2.766%2.77%407$84,167.000000$84,167.000000$84.2k2.452%2.45%488$82,233.000000$82,233.000000$82.2k10.271%10.3%1,805,4271.81M$80,806.000000$80,806.000000$80.8k6.085%6.08%2282299$80,806.000000$80,806.000000$80.8k6.085%6.08%15910$80,455.000000$80,455.000000$80.5k10.352%10.4%2,459,5242.46M$77,171.000000$77,171.000000$77.2k7.756%7.76%20511$77,171.000000$77,171.000000$77.2k7.756%7.76%15715812$75,299.000000$75,299.000000$75.3k10.273%10.3%3,534,0223.53M$73,281.000000$73,281.000000$73.3k2.628%2.63%6613$73,281.000000$73,281.000000$73.3k2.628%2.63%414214$72,586.000000$72,586.000000$72.6k10.036%10.0%14,852,82814.9M$71,080.000000$71,080.000000$71.1k7.490%7.49%11,36911.4k$70,820.000000$70,820.000000$70.8k2.982%2.98%4915$70,820.000000$70,820.000000$70.8k2.982%2.98%2016$68,056.000000$68,056.000000$68.1k6.035%6.03%19617$65,625.000000$65,625.000000$65.6k7.592%7.59%308$65,625.000000$65,625.000000$65.6k7.592%7.59%16416518$65,625.000000$65,625.000000$65.6k7.592%7.59%505119$65,398.000000$65,398.000000$65.4k6.008%6.01%16620$63,877.322218$63,877.322218$63.9k3.022%3.02%8721$63,558.000000$63,558.000000$63.6k2.668%2.67%3922$62,904.000000$62,904.000000$62.9k20.026%20.0%23623723$62,904.000000$62,904.000000$62.9k20.026%20.0%19119224$60,410.000000$60,410.000000$60.4k3.408%3.41%11925$57,019.000000$57,019.000000$57.0k5.229%5.23%4,971$56,370.743675$56,370.743675$56.4k8.903%8.90%15126$55,077.726173$55,077.726173$55.1k2.997%3.00%3127$53,262.000000$53,262.000000$53.3k6.540%6.54%1,448$52,083.000000$52,083.000000$52.1k8.058%8.06%10628$52,083.000000$52,083.000000$52.1k8.058%8.06%14929$51,876.517912$51,876.517912$51.9k3.008%3.01%6630$48,542.000000$48,542.000000$48.5k3.357%3.36%10133$48,125.000000$48,125.000000$48.1k5.909%5.91%1,169$46,380.388893$46,380.388893$46.4k2.996%3.00%12412534$45,192.000000$45,192.000000$45.2k1.466%1.47%222336$42,750.000000$42,750.000000$42.8k3.055%3.05%424340$41,346.000000$41,346.000000$41.3k6.430%6.43%043$29,271.000000$29,271.000000$29.3k5.275%5.28%4447$25,750.000000$25,750.000000$25.8k1.611%1.61%222348$25,750.000000$25,750.000000$25.8k1.611%1.61%5649$25,750.000000$25,750.000000$25.8k1.611%1.61%4550$25,750.000000$25,750.000000$25.8k1.611%1.61%051
% percent of the workforce employed in given occupation
Count number of people employed in given occupation
# rank of neighborhood out of 51 by income in given occupation

Definitions

An occupation describes the kind of work a person does on the job. On this page, all employed persons are categorized into one of the following occupations (bolded terms are used in the charts and maps on this page):

  • Management, business, science, and arts occupations:
    • Management, business, and financial occupations:
      • Management: Management occupations
      • Business: Business and financial operations occupations
    • Computer, engineering, and science occupations:
      • Computers & Math: Computer and mathematical occupations
      • Engineering: Architecture and engineering occupations
      • Science: Life, physical, and social science occupations
    • Education, legal, community service, arts, and media occupations:
      • Social Service: Community and social service occupations
      • Legal: Legal occupations
      • Education: Education, training, and library occupations
      • Entertainment: Arts, design, entertainment, sports, and media occupations
    • Healthcare practitioners and technical occupations:
      • Healthcare: Health diagnosing and treating practitioners and other technical occupations
      • Health Technicians: Health technologists and technicians
  • Service occupations:
    • Healthcare Support: Healthcare support occupations
    • Protective service occupations:
      • Fire Fighting: Fire fighting and prevention, and other protective service workers including supervisors
      • Law Enforcement: Law enforcement workers including supervisors
    • Food Service: Food preparation and serving related occupations
    • Facilities: Building and grounds cleaning and maintenance occupations
    • Personal Care: Personal care and service occupations
  • Sales and office occupations:
    • Sales and Related: Sales and related occupations
    • Administrative: Office and administrative support occupations
  • Natural resources, construction, and maintenance occupations:
    • Farming: Farming, fishing, and forestry occupations
    • Construction: Construction and extraction occupations
    • Repair: Installation, maintenance, and repair occupations
  • Production, transportation, and material moving occupations:
    • Production: Production occupations
    • Transportation: Transportation occupations
    • Material Moving: Material moving occupations

Unlike the other geographical entities detailed on this site, neighborhoods are not recognized by the U.S. Census Bureau. To overcome this we have computed reasonable estimates of the same statistics that are presented for other the entity types. Each statistic is computed as the weighted sum or average of the census tracts or block groups that overlap the neighborhood. A weighted sum is used for counts of people or households, and a weighted average is used for statistics that are themselves some form of average, such as median household income. Census block groups are preferred when the statistic in question is available on the block group level. The weight for a given tract (or block group) is computed as the population of the census tabulation blocks that occupy the intersection between the tract and the neighborhood as a fraction of the total population of the neighborhood.

For additional information about the data presented on this site, including our sources, please see the About Page.

More Topics to Explore

Demographics

Income

Education

More Maps to Explore

State:
California
County:
Ventura
Metro Area:
Oxnard Area
City:
Oxnard
ZIP Code:
93036
Elementary School District:
Rio
Secondary School District:
Oxnard
Congressional District:
CA-26
State Senate District:
CA-19
Assembly District:
CA-37
Neighboring Neighborhoods:
El Rio, El Rio West
Nearby Neighborhoods:
Carriage Square, Montalvo, North Bank, Orchard, Rio Lindo, Serra, Sierra Linda, South Bank, Strickland, Windsor North River Ridge