Age and Sex in Tract 105000, Marin County, California (Tract)

Age Structure#1

Percentage in each age cohort per year of age.1 Gray areas represent percentile bands from the tracts in Marin County.
Scope: population of Marin County, Tract 105000, and other tracts in Marin County
Tract 105000
Marin County
Percentile:
0th - 100th
10th - 90th
20th - 80th
30th - 70th
40th - 60th
0.0%0.5%1.0%1.5%2.0%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4751.173%1.17%1332.080%2.08%1702.659%2.66%1923.003%3.00%3154.926%4.93%1642.565%2.56%2083.253%3.25%3164.942%4.94%3184.973%4.97%5769.008%9.01%4897.648%7.65%4837.554%7.55%6269.790%9.79%2734.270%4.27%791.236%1.24%721.126%1.13%791.236%1.24%00.000%0%1422.221%2.22%2083.253%3.25%3936.146%6.15%74211.605%11.6%3415.333%5.33%
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 Marin County and Tract 105000
Female Male
Marin County
Tract 105000
Shaded bar tips show excess over facing bar.
0.5%0.0%0.5%Count%Senior2Older Adult3Younger Adult4College5Children6-0.218086%-0.019550%-0.239223%-0.062162%-0.237636%0.24%0.218086%0.239223%0.218086%0.22%1,04916.406%16.4%-0.690647%-0.113857%-0.752088%-0.050648%-0.804504%0.80%0.690647%0.752088%0.690647%0.69%2,39037.379%37.4%-0.456157%-0.465166%-0.456157%0.46%0.456157%0.000000%0.465166%0.035472%0.456157%0.46%1,05016.422%16.4%-0.101658%-0.433089%-0.101658%0.10%0.101658%0.660776%0.433089%0.075860%0.762434%0.76%2213.456%3.46%-0.510896%-0.561536%-0.510896%0.51%0.510896%0.441386%0.561536%0.016644%0.952282%0.95%1,68426.337%26.3%
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 Marin County and Tract 105000
Female Male
Marin County
Tract 105000
Shaded bar tips show excess over facing bar.
1%0%1%Count%85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2922-24212018-1915-1710-145-90-4-0.032257%-0.008797%-0.057377%-0.046774%-0.041054%0.0%0.032257%0.057377%0.032257%0.0%751.173%1.17%-0.040663%-0.200264%-0.057218%-0.040663%0.0%0.040663%0.334689%0.200264%0.375352%0.4%1332.080%2.08%-0.128245%-0.275258%-0.283392%-0.085056%-0.403503%0.4%0.128245%0.283392%0.128245%0.1%1702.659%2.66%-0.287770%-0.480648%-0.006169%-0.287770%0.3%0.287770%0.025023%0.480648%0.312793%0.3%1923.003%3.00%-0.578668%-0.484830%-0.550590%-0.187386%-1.063497%1.1%0.578668%0.550590%0.578668%0.6%3154.926%4.93%-0.523929%-0.610353%-0.092536%-0.523929%0.5%0.523929%0.234595%0.610353%0.758524%0.8%1642.565%2.56%-0.531749%-0.679241%-0.107188%-0.531749%0.5%0.531749%0.020853%0.679241%0.552601%0.6%2083.253%3.25%-1.188614%-0.795618%-0.095814%-1.188614%1.2%1.188614%0.093838%0.795618%1.282452%1.3%3164.942%4.94%-0.184548%-0.625586%-0.740598%-0.077422%-0.810135%0.8%0.184548%0.740598%0.184548%0.2%3184.973%4.97%-0.875821%-0.050047%-0.786172%-0.042258%-0.925868%0.9%0.875821%0.786172%0.875821%0.9%5769.008%9.01%-0.685017%-0.786018%-0.028840%-0.685017%0.7%0.685017%0.159525%0.786018%0.844542%0.8%4897.648%7.65%-0.703785%-0.103222%-0.721859%-0.002082%-0.807007%0.8%0.703785%0.721859%0.703785%0.7%4837.554%7.55%-0.813262%-0.331561%-0.573416%-1.144823%1.1%0.813262%0.573416%0.001619%0.813262%0.8%6269.790%9.79%-0.359712%-0.472012%-0.359712%0.4%0.359712%0.134501%0.472012%0.030537%0.494213%0.5%2734.270%4.27%-0.109478%-0.028151%-0.380941%-0.137629%0.1%0.109478%0.380941%0.078347%0.109478%0.1%791.236%1.24%-0.000000%-0.413714%0.000000%0.0%0.000000%0.375352%0.413714%0.028661%0.375352%0.4%721.126%1.13%-0.000000%-0.337372%0.000000%0.0%0.000000%1.235533%0.337372%0.161167%1.235533%1.2%791.236%1.24%-0.000000%-0.426438%0.000000%0.0%0.000000%0.000000%0.426438%0.107188%0.000000%0.0%00.000%0%-0.203316%-0.484273%-0.203316%0.2%0.203316%0.703785%0.484273%0.017543%0.907100%0.9%1422.221%2.22%-0.250235%-0.583881%-0.569355%-0.834115%0.8%0.250235%0.569355%0.010667%0.250235%0.3%2083.253%3.25%-0.365968%-0.625468%-0.008791%-0.365968%0.4%0.365968%0.497341%0.625468%0.863309%0.9%3936.146%6.15%-0.631842%-0.568095%-0.631842%0.6%0.631842%1.057241%0.568095%0.039251%1.689084%1.7%74211.605%11.6%-0.340945%-0.477564%-0.340945%0.3%0.340945%0.384736%0.477564%0.023057%0.725680%0.7%3415.333%5.33%
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 Marin County and Tract 105000
More Females More Males
Marin County
Tract 105000
0%500%M:FFM85+80-8475-7970-7467-6965-6662-6460-6155-5950-5445-4940-4435-3930-3425-2918-1915-1710-145-90-4-27.272727%-81.520370%-27.272727%27.3%0.7860.7956.000%56.0%44.000%44.0%-28.571429%823.076923%823.076923%823.1%9.2319.239.774%9.77%90.226%90.2%-214.634146%-30.013605%-214.634146%214.6%0.3180.3275.882%75.9%24.118%24.1%-1.283491%8.695652%8.695652%8.7%1.0871.0947.917%47.9%52.083%52.1%-83.783784%-34.033613%-83.783784%83.8%0.5440.5464.762%64.8%35.238%35.2%-15.161087%44.776119%44.776119%44.8%1.4481.4540.854%40.9%59.146%59.1%-15.780511%3.921569%3.921569%3.9%1.0391.0449.038%49.0%50.962%51.0%-12.042646%7.894737%7.894737%7.9%1.0791.0848.101%48.1%51.899%51.9%-338.983051%-10.453978%-338.983051%339.0%0.2280.2381.447%81.4%18.553%18.6%-5.714286%-5.375184%-5.714286%5.7%0.9460.9551.389%51.4%48.611%48.6%-3.669185%23.287671%23.287671%23.3%1.2331.2344.785%44.8%55.215%55.2%-14.666667%-0.288431%-14.666667%14.7%0.8720.8753.416%53.4%46.584%46.6%-40.769231%-40.769231%40.8%0.282410%0.7100.7158.466%58.5%41.534%41.5%37.391304%6.469531%37.391304%37.4%1.3741.3742.125%42.1%57.875%57.9%-25.714286%-25.714286%25.7%20.566802%0.7950.8055.696%55.7%44.304%44.3%346.153846%3.622611%346.153846%346.2%4.4624.4618.310%18.3%81.690%81.7%-233.333333%-233.333333%233.3%1.873589%0.3000.3076.923%76.9%23.077%23.1%-1.405499%135.897436%135.897436%135.9%2.3592.3629.771%29.8%70.229%70.2%167.326733%6.909190%167.326733%167.3%2.6732.6727.224%27.2%72.776%72.8%112.844037%4.828032%112.844037%112.8%2.1282.1331.965%32.0%68.035%68.0%
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

Map of Age Cohorts by Block Group in Tract 105000

Children Age Cohorts by Block Group#5

Percentage of population aged 0 to 17 (%):
24.2%25.0%25.7%26.4%27.2%27.9%

College Age Cohorts by Block Group#6

Percentage of population aged 18 to 21 (%):
0.9%2.1%3.3%4.4%5.6%6.8%

20s Age Cohorts by Block Group#7

Percentage of population aged 22 to 29 (%):
2.3593%2.3601%2.3609%2.3617%2.3625%2.3633%

30s Age Cohorts by Block Group#8

Percentage of population aged 30 to 39 (%):
13.75%13.86%13.97%14.08%14.18%14.29%

40s Age Cohorts by Block Group#9

Percentage of population aged 40 to 49 (%):
9.8%11.7%13.6%15.5%17.4%19.3%

50s Age Cohorts by Block Group#10

Percentage of population aged 50 to 59 (%):
12.0%13.0%13.8%14.7%15.6%16.6%

60s Age Cohorts by Block Group#11

Percentage of population aged 60 to 69 (%):
15.02%15.26%15.49%15.72%15.95%16.19%

70s Age Cohorts by Block Group#12

Percentage of population aged 70 to 79 (%):
4.4%5.0%5.6%6.1%6.7%7.3%

80+ Age Cohorts by Block Group#13

Percentage of population aged 80 and older (%):
2.55%2.88%3.20%3.53%3.85%4.18%
Road Data ©OpenStreetMap

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Map of Age Cohorts by Block in Tract 105000

Children Age Cohorts by Block#14

Percentage of population aged 0 to 17 (%):
0%12%24%36%48%61%

College Age Cohorts by Block#15

Percentage of population aged 18 to 21 (%):
0.0%2.5%5.0%7.5%10.0%12.5%

20s Age Cohorts by Block#16

Percentage of population aged 22 to 29 (%):
0%8%15%22%30%38%

30s Age Cohorts by Block#17

Percentage of population aged 30 to 39 (%):
0%9%17%26%35%44%

40s Age Cohorts by Block#18

Percentage of population aged 40 to 49 (%):
0%8%16%24%32%40%

50s Age Cohorts by Block#19

Percentage of population aged 50 to 59 (%):
0%7%13%20%27%34%

60s Age Cohorts by Block#20

Percentage of population aged 60 to 69 (%):
0%13%25%38%50%63%

70s Age Cohorts by Block#21

Percentage of population aged 70 to 79 (%):
0%7%14%21%28%36%

80+ Age Cohorts by Block#22

Percentage of population aged 80 and older (%):
0%7%15%22%29%37%
Road Data ©OpenStreetMap

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Age Cohorts by Tract in Marin County

There are 56 tracts in Marin County. This section compares Tract 105000 to the 50 most populous tracts in Marin County and to those entities that contain or substantially overlap with Tract 105000. The least populous of the compared tracts has a population of 2,319.

Children by Tract#23

Percentage of population aged 0 to 17 (%):
Scope: population of Tract 105000, selected other tracts in Marin County, and entities that contain Tract 105000
0%10%20%30%Count#112201Tract 112201129000Tract 129000118100Tract 118100112202Tract 112202119202Tract 119202126100Tract 126100105000Tract 105000124100Tract 124100102202Tract 102202117000Tract 117000104102Tract 104102101200Tract 101200116000Tract 116000WestCalifornia112100Tract 112100121200Tract 121200Pacific127000Tract 127000United States of AmericaUnited States121100Tract 121100119100Tract 119100128200Tract 128200102203Tract 102203ZIP Code 94949ZIP 94949128100Tract 128100120000Tract 120000115000Tract 115000107000Tract 107000103100Tract 103100Marin CountyMarinSan Francisco, Oakland, and Hayward Metro AreaSan Francisco110200Tract 110200109002Tract 109002126200Tract 126200124200Tract 124200104101Tract 104101108100Tract 108100125000Tract 125000113000Tract 113000114200Tract 114200104200Tract 104200103200Tract 103200114100Tract 114100109001Tract 109001108200Tract 108200106002Tract 106002102100Tract 102100101100Tract 101100133000Tract 133000111000Tract 111000110100Tract 110100119201Tract 119201106001Tract 106001130201Tract 130201130202Tract 130202122000Tract 12200034.407736%34.407736%34.4%2,562129.769315%29.769315%29.8%813229.140461%29.140461%29.1%695327.366167%27.366167%27.4%1,278427.151935%27.151935%27.2%940526.522188%26.522188%26.5%1,542626.337191%26.337191%26.3%1,684725.328643%25.328643%25.3%1,368824.477566%24.477566%24.5%1,593924.448854%24.448854%24.4%1,1091024.302644%24.302644%24.3%1,3331124.247436%24.247436%24.2%7331223.954137%23.954137%24.0%7731323.760486%23.760486%23.8%17,834,66617.8M23.646283%23.646283%23.6%9,140,2839.14M23.590244%23.590244%23.6%1,2091423.475355%23.475355%23.5%1,4051523.336041%23.336041%23.3%12,102,10512.1M23.275862%23.275862%23.3%1,1071623.108006%23.108006%23.1%73,612,43873.6M23.053259%23.053259%23.1%1,1991722.943038%22.943038%22.9%1,1601822.809306%22.809306%22.8%1,0491921.529350%21.529350%21.5%1,2362021.378290%21.378290%21.4%3,61421.372032%21.372032%21.4%1,3772121.266183%21.266183%21.3%1,3472221.206632%21.206632%21.2%1,5222321.104331%21.104331%21.1%1,4182420.972917%20.972917%21.0%1,6342520.514887%20.514887%20.5%53,20753.2k20.429183%20.429183%20.4%935,152935k20.144025%20.144025%20.1%1,0352620.053346%20.053346%20.1%8272719.826997%19.826997%19.8%8712819.768805%19.768805%19.8%1,1802919.586757%19.586757%19.6%1,6213019.502136%19.502136%19.5%1,3243119.229113%19.229113%19.2%8933219.133279%19.133279%19.1%7023318.808074%18.808074%18.8%5873418.548679%18.548679%18.5%1,0253518.443591%18.443591%18.4%1,2493617.913310%17.913310%17.9%9343717.889222%17.889222%17.9%7173817.628774%17.628774%17.6%1,1913917.459618%17.459618%17.5%1,1894017.248814%17.248814%17.2%4004117.188075%17.188075%17.2%4674215.224192%15.224192%15.2%4384315.010211%15.010211%15.0%8824414.182692%14.182692%14.2%8264512.559952%12.559952%12.6%4194611.564786%11.564786%11.6%490477.937411%7.937411%7.9%279487.729469%7.729469%7.7%320490.000000%0.000000%0.0%050
Count number of children
# rank of tract out of 50 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

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:
Marin
Metro Area:
San Francisco Area
City:
Novato
ZIP Code:
94949
Unified School District:
Novato
Elementary School District:
Dixie
Secondary School District:
San Rafael City
Congressional District:
CA-2
State Senate District:
CA-2
Assembly District:
CA-10
Block Groups:
Block Group 105000-1, Block Group 105000-2
Neighboring Tracts:
Tract 104200, Tract 104300, Tract 106001, Tract 107000