Age and Sex in Rancho View Knolls, Lafayette, California (Neighborhood)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the neighborhoods in Lafayette.
Scope: population of Lafayette, Rancho View Knolls, and other neighborhoods in Lafayette
Rancho View Knolls
Lafayette
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%2.0%2.5%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4123.054%3.05%123.446%3.45%011.253%1.25%23.602%3.60%458.144%8.14%235.168%5.17%36.186%6.19%11.958%1.96%458.301%8.30%5610.376%10.4%458.927%8.93%24.072%4.07%458.771%8.77%11.958%1.96%11.879%1.88%011.096%1.10%00.000%0%011.135%1.14%123.054%3.05%234.855%4.86%35.951%5.95%234.894%4.89%11.919%1.92%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval

Age and Sex#2

Percentage in each age cohort per year of age.1
Scope: population of Lafayette and Rancho View Knolls
Female Male
Lafayette
Rancho View Knolls
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.286044%-0.113112%-0.253142%-0.003721%-0.399156%0.40%0.286044%0.253142%0.286044%0.29%131424.667%24.7%-0.734534%-0.123727%-0.734092%-0.052795%-0.858262%0.86%0.734534%0.734092%0.734534%0.73%2239.820%39.8%-0.337162%-0.087009%-0.345184%-0.124109%-0.424171%0.42%0.337162%0.345184%0.337162%0.34%7813.704%13.7%-0.342600%-0.215713%-0.382176%-0.342600%0.34%0.342600%0.362177%0.215713%0.704777%0.70%24.190%4.19%-0.358914%-0.704158%-0.358914%0.36%0.358914%0.261028%0.704158%0.019481%0.619943%0.62%91017.619%17.6%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval 265+ 340-64 422-39 518-21 60-17

Detailed Age and Sex#3

Percentage in each age cohort per year of age.1
Scope: population of Lafayette and Rancho View Knolls
Female Male
Lafayette
Rancho View Knolls
Shaded bar tips show excess over facing bar.
1%0%1%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.000000%-0.190877%-0.076337%-0.014529%-0.190877%0.2%0.000000%0.076337%0.000000%0.0%123.054%3.05%-0.140955%-0.407204%-0.211970%-0.548160%0.5%0.140955%0.211970%0.003152%0.140955%0.1%123.446%3.45%-0.000000%-0.223789%-0.108743%0.000000%0.0%0.000000%0.250587%0.223789%0.250587%0.3%011.253%1.25%-0.250587%-0.416847%-0.250587%0.3%0.250587%0.219264%0.416847%0.003940%0.469851%0.5%23.602%3.60%-1.070217%-0.574263%-0.577860%-1.644479%1.6%1.070217%0.577860%0.190431%1.070217%1.1%458.144%8.14%-1.194205%-0.626453%-1.194205%1.2%1.194205%0.195771%0.626453%0.017730%1.389977%1.4%235.168%5.17%-0.822240%-0.467541%-0.294183%-0.822240%0.8%0.822240%0.417646%0.467541%1.239885%1.2%36.186%6.19%-0.195771%-0.587314%-0.577203%-0.783085%0.8%0.195771%0.577203%0.405815%0.195771%0.2%11.958%1.96%-0.266249%-1.127643%-0.618573%-0.118199%-1.393892%1.4%0.266249%0.618573%0.266249%0.3%458.301%8.30%-0.689115%-0.836846%-0.042552%-0.689115%0.7%0.689115%0.696946%0.836846%1.386061%1.4%5610.376%10.4%-0.853563%-0.078309%-0.875458%-0.052007%-0.931872%0.9%0.853563%0.875458%0.853563%0.9%458.927%8.93%-0.344558%-0.125294%-0.665852%-0.037036%-0.469851%0.5%0.344558%0.665852%0.344558%0.3%24.072%4.07%-0.634299%-0.485513%-0.360112%-0.258461%-1.119812%1.1%0.634299%0.360112%0.634299%0.6%458.771%8.77%-0.117463%-0.311256%-0.134746%-0.117463%0.1%0.117463%0.156617%0.311256%0.274080%0.3%11.958%1.96%-0.086139%-0.203602%-0.308104%-0.014184%-0.289742%0.3%0.086139%0.308104%0.086139%0.1%11.879%1.88%-0.000000%-0.438648%-0.065666%0.000000%0.0%0.000000%0.365440%0.438648%0.365440%0.4%011.096%1.10%-0.000000%-0.307316%-0.464915%0.000000%0.0%0.000000%0.000000%0.307316%0.000000%0.0%00.000%0%-0.000000%-0.299437%-0.602813%0.000000%0.0%0.000000%1.135474%0.299437%1.135474%1.1%011.135%1.14%-0.685200%-0.128049%-0.230487%-0.685200%0.7%0.685200%0.156617%0.128049%0.841817%0.8%123.054%3.05%-0.730880%-0.786678%-0.208818%-0.730880%0.7%0.730880%0.156617%0.786678%0.887497%0.9%234.855%4.86%-0.462020%-0.784051%-0.462020%0.5%0.462020%0.266249%0.784051%0.229305%0.728269%0.7%35.951%5.95%-0.093970%-0.583901%-0.093970%0.1%0.093970%0.790916%0.583901%0.188330%0.884886%0.9%234.894%4.89%-0.086139%-0.211433%-0.347504%-0.222213%-0.297572%0.3%0.086139%0.347504%0.086139%0.1%11.919%1.92%
Count number of people in age cohort
% age cohort as a percentage of the total population
1normalized with respect to the number of years in each interval

Detailed Sex Ratio#4

Percentage more males or females in selected age cohorts.
Scope: population of Lafayette and Rancho View Knolls
More Females More Males
Lafayette
Rancho View Knolls
1,000%500%0%500%M:FFM85+80-8470-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2918-1915-1710-145-90-4-1,000.000000%-19.032258%-1,000.000000%> 1000%0.0000100.000%100%0.000%0%-288.888889%-288.888889%288.9%1.486989%0.2570.2679.545%79.5%20.455%20.5%87.500000%0.945180%87.500000%87.5%1.8751.8834.783%34.8%65.217%65.2%-53.658537%-53.658537%53.7%32.954545%0.6510.6560.577%60.6%39.423%39.4%16.393443%2.830189%16.393443%16.4%1.1641.1646.212%46.2%53.788%53.8%-62.921348%50.793651%50.793651%50.8%1.5081.5139.873%39.9%60.127%60.1%-300.000000%-300.000000%300.0%70.307167%0.2500.2580.000%80.0%20.000%20.0%-423.529412%-19.108280%-423.529412%423.5%0.1910.1983.962%84.0%16.038%16.0%-5.084746%101.136364%101.136364%101.1%2.0112.0133.208%33.2%66.792%66.8%-9.174312%-5.940594%-9.174312%9.2%0.9160.9252.193%52.2%47.807%47.8%-36.363636%-5.562130%-36.363636%36.4%0.7330.7357.692%57.7%42.308%42.3%-76.543210%-71.772429%-76.543210%76.5%0.5660.5763.839%63.8%36.161%36.2%-43.291139%133.333333%133.333333%133.3%2.3332.3330.000%30.0%70.000%70.0%-236.363636%-4.603581%-236.363636%236.4%0.2970.3077.083%77.1%22.917%22.9%-180.000000%22.857143%22.857143%22.9%1.2291.2344.872%44.9%55.128%55.1%-26.544240%21.428571%21.428571%21.4%1.2141.2145.161%45.2%54.839%54.8%57.627119%29.246231%57.627119%57.6%1.5761.5838.816%38.8%61.184%61.2%841.666667%32.253711%841.666667%841.7%9.4179.429.600%9.60%90.400%90.4%-245.454545%-63.945578%-245.454545%245.5%0.2890.2977.551%77.6%22.449%22.4%
M:F ratio of males to females in the age cohort
F females as a percentage of the age cohort
M males as a percentage of the age cohort

Age Cohorts by Neighborhood in Lafayette

There are 18 neighborhoods in Lafayette. This section compares Rancho View Knolls to all of the neighborhoods in Lafayette and to those entities that contain or substantially overlap with Rancho View Knolls.

Children by Neighborhood#5

Percentage of population aged 0 to 17 (%):
Scope: population of Rancho View Knolls, selected other neighborhoods in Lafayette, and entities that contain Rancho View Knolls
0%10%20%30%Count#Springbrook NeighborhoodSpringbrookSaint Mary's Orchard NeighborhoodSt Mary's OrchHappy Valley Highlands NeighborhoodHappy Vly HighlandsCircle Creek NeighborhoodCircle CreekLafayette Valley Estates NeighborhoodLafayette Vly EstsSky Hy NeighborhoodSky HySilver Springs NeighborhoodSilver SpgsDiablo Oaks NeighborhoodDiablo OaksLafayetteLafayette Elementary School DistrictLafayetteZIP Code 94549ZIP 94549Secluded Valley NeighborhoodSecluded VlyWestCaliforniaContra Costa CountyContra CostaPacificPleasant Hills and Valleys NeighborhoodPleasant Hls and …United States of AmericaUnited StatesBrown Avenue NeighborhoodBrown AvenueValley View Estates NeighborhoodVly Vw EstsSan Francisco, Oakland, and Hayward Metro AreaSan FranciscoAcalanes Union High School DistrictAcalanes347000Tract 347000Echo Springs NeighborhoodEcho Springs347000-1B.G. 347000-1Silver Dell NeighborhoodSilver DellRancho View Knolls NeighborhoodRancho Vw KnlsGreen Valley NeighborhoodGreen ValleyTanglewood NeighborhoodTanglewood31.164249%31.164249%31.2%191130.701754%30.701754%30.7%8081227.010111%27.010111%27.0%193326.872929%26.872929%26.9%182183426.748971%26.748971%26.7%119120526.748971%26.748971%26.7%8726.748971%26.748971%26.7%2930626.683790%26.683790%26.7%65825.700327%25.700327%25.7%6,52325.294016%25.294016%25.3%7,29124.650922%24.650922%24.7%7,15024.353448%24.353448%24.4%34923.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.527315%23.527315%23.5%260,665261k23.336041%23.336041%23.3%12,102,10512.1M23.171701%23.171701%23.2%2642651023.108006%23.108006%23.1%73,612,43873.6M22.590837%22.590837%22.6%251122.590837%22.590837%22.6%51220.429183%20.429183%20.4%935,152935k20.139820%20.139820%20.1%23,27723.3k19.854839%19.854839%19.9%1,23117.975070%17.975070%18.0%21221317.619421%17.619421%17.6%45017.619421%17.619421%17.6%61417.619421%17.619421%17.6%9101517.142022%17.142022%17.1%931612.731006%12.731006%12.7%101117
Count number of children
# rank of neighborhood out of 17 by %

Definitions

The US Census reports extensively on the topics of age and sex, often reporting other topics broken down by age and sex cohorts. This page reports on age and sex alone; charts presenting other topics by age and sex can be found on their topic-specific pages.

  • Children: less than 18 years old
  • College: from 18 to 21 years old
  • 20s: from 22 to 29 years old, to not overlap the college category
  • Younger Adult: from 22 to 39 years old
  • Older Adult: from 40 to 64 years old
  • Senior: more than 64 years old

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

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More Maps to Explore

State:
California
County:
Contra Costa
Metro Area:
San Francisco Area
City:
Lafayette
ZIP Code:
94549
Elementary School District:
Lafayette
Secondary School District:
Acalanes
Congressional District:
CA-11
State Senate District:
CA-7
Assembly District:
CA-16
Neighboring Neighborhoods:
Green Valley
Nearby Neighborhoods:
Brown Avenue, Echo Springs, Green Valley, Hillsdale, Northridge, Poets Corner, Secluded Valley, Silver Dell, Springbrook, Valley View Estates, Woodside Meadows