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Profile of Congressional District 31, CA


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Districts in this state



Congress:    
State Senate:    
State House:    

2022 population: 749,679

2022 Census data
White:107,252 14.31%
Black:18,9752.53%
Indian:2,1970.29%
Asian:144,48519.27%
2+ races:13,8461.85%
Hispanic:460,18361.38%
Total non-White:642,42785.69%




    

Age, Family & Household Data for Congressional District 31, CA

[Display all years]

Year:
 
Median Age:
Under 18:
Voting Age Population:
Over 65:
Households:
Persons Per HH:
Families (%HH):
Married Couples (%Fams):
Single Mothers (%Fams):
Non-Family (%HH):

2022
NumberPercent
38.4
158,219 21.1%
591,460 78.9%
112,288 15.0%
217,179
3.40
169,289 77.9%
110,881 65.5%
13,505 8.0%
47,890 22.1%
    

2022 Housing Data for Congressional District 31, CA

Housing Data
 Number%
Housing Units225,438 
Median Value$628,100 
Occupied217,17996.3%
Vacant8,2593.7%
Owned128,80659.3%
Rented88,37340.7%
Median Rent$1,828 
Single-Family Units164,48873.0%
    Detached145,14064.4%
    Attached19,3488.6%
Buldings with 5+ Units38,85317.2%
Mobile Homes8,9864.0%

2022 Income & Employment Data for Congressional District 31, CA

Household Income
RangeNumber%
Less than $10,0007,2423.3%
$10,000 to $14,9996,8913.2%
$15,000 to $19,9996,1022.8%
$20,000 to $24,9996,8373.1%
$25,000 to $29,9996,4523.0%
$30,000 to $34,9997,4893.4%
$35,000 to $39,9996,5633.0%
$40,000 to $44,9997,5503.5%
$45,000 to $49,9996,7143.1%
$50,000 to $59,99913,5776.3%
$60,000 to $74,99919,8719.1%
$75,000 to $99,99930,02913.8%
$100,000 to $124,99923,85211.0%
$125,000 to $149,99919,8239.1%
$150,000 to $199,99923,13410.7%
$200,000 or more25,05311.5%
Median Household Income85,555 
Per Capita Income32,497 
Welfare Households
 Number%
SSI16,2267.5%
Public Assistance9,6984.5%
Public Asst. or Food Stamps29,69113.7%
Labor Force, Ages 25-64
 Number%
Employed129,44969.2%
Unemployed8,9864.8%
In Armed Forces1540.1%
Total Labor Force138,58974.1%
Not in Labor Force48,34725.9%
Real Unemployment Rate 30.7%
Class of Worker
 MaleFemale% Male
Private Sector141,384107,54856.8%
Non-Profit10,49818,39136.3%
Self-Employed22,29512,20164.6%
Local Government14,02720,60440.5%
State Government4,3746,95638.6%
Federal Government3,1251,98161.2%
Total Private + Self163,679119,74957.7%
Total Non-Profit + Govt.32,02447,93240.1%
Total195,703167,68153.9%
Pct. Govt.14.1%  
Occupation
 Number%
Management, Business, Science, Arts47,39313.0%
Sales and Office Occupations82,85722.8%
Professional, Technical68,80218.9%
Service Occupations69,03919.0%
Farming, Forestry, Fishing1,7100.5%
All others95,84726.3%
White Collar 54.7%
Industry
 Number%
Manufacturing40,58911.2%
Retail trade39,86311.0%
Educational services and health care31,9988.8%
Accommodation, food svcs, recreation27,4207.5%
Construction25,8917.1%
Transportation, warehousing, utilities22,3136.1%
Other services19,0815.2%
Professional, scientific, management17,8084.9%
Wholesale trade15,1864.2%
Public administration14,5484.0%
Finance, insurance and real estate12,0323.3%
Information6,1721.7%
Farming, forestry, fishing, mining2,2980.6%

2022 Ancestry, Citizenship & Language Data for Congressional District 31, CA

Hispanic Breakdown
CountryNumber%
Mexican389,93852.01%
Puerto Rican3,5340.47%
Cuban3,3210.44%
Dominican2850.04%
Total Central American39,8055.31%
Costa Rican1,2940.17%
Guatemalan11,4461.53%
Honduran2,1470.29%
Nicaraguan3,6440.49%
Panamanian4370.06%
Salvadoran20,6352.75%
Other Central American2020.03%
Total South American10,2211.36%
Argentinean1,4330.19%
Bolivian3550.05%
Chilean5960.08%
Colombian2,1560.29%
Ecuadorian1,6870.23%
Paraguayan280.00%
Peruvian3,2710.44%
Uruguayan1230.02%
Venezuelan4350.06%
Other South American1370.02%
Other Hispanic13,0791.74%
Asian Breakdown
CountryNumber%
Chinese64,0808.55%
Filipino30,5974.08%
Vietnamese21,3052.84%
Indian3,6330.48%
Taiwanese3,5300.47%
Japanese3,4310.46%
Korean3,0610.41%
Burmese1,7310.23%
Cambodian1,5030.20%
Language Spoken at Home
LanguageNumber%
Spanish310,08543.6%
English275,37138.7%
Chinese59,0988.3%
Tagalog21,3983.0%
Vietnamese19,0652.7%
Other Asian9,0361.3%
Other Indo-European6,6150.9%
Arabic4,3400.6%
Korean2,3570.3%
Ancestry
CountryNumber%
German24,7383.3%
Irish21,7512.9%
English19,4202.6%
Italian13,7461.8%
American13,1381.8%
French5,8990.8%
Scottish4,2800.6%
European4,1450.6%
Polish3,5470.5%
Norwegian3,1700.4%
Swedish2,9650.4%
Dutch2,7760.4%
Armenian2,3200.3%
Egyptian1,7330.2%
Greek1,5790.2%
Citizenship & Nativity
 Number%
U.S. citizen642,89585.8%
Not a citizen106,78414.2%
Native489,58465.3%
Foreign-born260,09534.7%

2022 Educational Attainment Data for Congressional District 31, CA

Educational Attainment, Population 25 Years and Older
< 9 Years9-12 YearsH.S. Grad or GEDSome CollegeBach. DegreeGrad Degree
66,380 12.9%45,555 8.8%137,114 26.6%141,351 27.4%86,466 16.8%38,890 7.5%
  Average years of education: 12.3
Population 25 Years and Older
< 9 Years 66,380 12.9%
9-12 Years 45,555 8.8%
H.S. Grad or GED 137,114 26.6%
Some College 141,351 27.4%
Bach. Degree 86,466 16.8%
Grad Degree 38,890 7.5%
Average years of education: 12.3

Source for the above data: U.S. Census Bureau / American Community Survey (1 year-estimates)



Historical U.S. House Election Results for Congressional District 31, CA

Click on the District to view county-level data for that election (where available).
NOTE: Results prior to 2022 are for districts which previously covered much of this area, regardless of district number.

DateDistrictWinnerRunner-Up OtherTotal Votes
2022-11-08 CA31Grace Napolitano* (D) 91,472 59.5% Daniel Martinez (R) 62,153 40.5% 0 0.0% 153,625
Redistricting effect (2022); the partisan balance of the district was changed by less than 1% compared to 2020.
2020-11-03 CA32Grace Napolitano* (D) 172,942 66.6% Joshua Scott (R) 86,818 33.4% 0 0.0% 259,760
2018-11-06 CA32Grace Napolitano* (D) 121,759 68.8% Joshua Scott (R) 55,272 31.2% 0 0.0% 177,031
2016-11-08 CA32Grace Napolitano* (D) 114,926 61.6% Roger Hernandez (D) 71,720 38.4% 0 0.0% 186,646
2014-11-04 CA32Grace Napolitano* (D) 50,353 59.7% Arturo Alas (R) 34,053 40.3% 0 0.0% 84,406
2012-11-06 CA32Grace Napolitano* (D) 124,903 65.7% David Miller (R) 65,208 34.3% 0 0.0% 190,111
Redistricting effect (2012); the partisan balance of the district was moved to the RIGHT by approximately 6% compared to 2010.
2010-11-02 CA32Judy Chu* (D) 77,759 71.0% Ed Schmerling (R) 31,697 29.0% 0 0.0% 109,456
2009-07-14 sp CA32Judy Chu (D) 16,194 61.2% Betty Chu (R) 8,630 32.6% 1,625 6.1% 26,449
2008-11-04 CA32Hilda Solis* (D) 130,142 100.0% 8 0.0% 130,150
2006-11-07 CA32Hilda Solis* (D) 76,059 83.0% Leland Faegre (Libertarian) 15,627 17.0% 0 0.0% 91,686
2004-11-02 CA32Hilda Solis* (D) 119,144 85.0% Leland Faegre (Libertarian) 21,002 15.0% 0 0.0% 140,146
2002-11-05 CA32Hilda Solis* (D) 58,350 68.6% Emma Fischbeck (R) 23,366 27.5% 3,363 4.0% 85,079
Redistricting effect (2002); the partisan balance of the district was moved to the RIGHT by approximately 3% compared to 2000.
2000-11-07 CA31Hilda Solis (D) 89,600 79.4% Krista Lieberg-Wong (Green) 10,294 9.1% 13,020 11.5% 112,914
1998-11-03 CA31Marty Martinez* (D) 61,173 70.0% Frank Moreno (R) 19,786 22.6% 6,401 7.3% 87,360
1996-11-05 CA31Marty Martinez* (D) 69,285 67.5% John Flores (R) 28,705 28.0% 4,700 4.6% 102,690
1994-11-08 CA31Marty Martinez* (D) 50,541 59.1% John Flores (R) 34,926 40.9% 0 0.0% 85,467
1992-11-03 CA31Marty Martinez* (D) 68,324 62.6% Reuben Franco (R) 40,873 37.4% 0 0.0% 109,197
*: incumbent           sp: special election           RO: runoff election

Historical Presidential Election Results for Congressional District 31, CA


Click on the Year to view presidential county-level data for that election.

YearTurnout WinnerRunner-Up OtherTotal Votes Diff
(St)
Diff
(US)
PSV
2020 redist Joe Biden (D) 198,028 64.5% Donald Trump* (R) 102,679 33.4% 6,366 2.1% 307,073 -1 -13 1.75%
2020 51% Joe Biden (D) 184,978 65.2% Donald Trump* (R) 93,155 32.8% 5,776 2.0% 283,909 -1 -14 1.62%
2016 41% Hillary Clinton (D) 146,459 66.6% Donald Trump (R) 60,921 27.7% 12,666 5.8% 220,046 -4 -18 1.55%
2012 39% Barack Obama* (D) 133,061 65.2% Mitt Romney (R) 66,269 32.5% 4,839 2.4% 204,169 -5 -15 1.56%
2008 40% Barack Obama (D) 119,726 68.2% John McCain (R) 52,356 29.8% 3,557 2.0% 175,639 -7 -16 1.29%
2004 36% John Kerry (D) 99,286 62.3% George W. Bush* (R) 58,341 36.6% 1,756 1.1% 159,383 -8 -14 1.28%
2000 30% Albert Gore, Jr. (D) 86,956 69.3% George W. Bush (R) 34,389 27.4% 4,176 3.3% 125,521 -14 -21 1.14%
1996 25% Bill Clinton* (D) 70,288 66.9% Robert Dole (R) 27,736 26.4% 7,043 6.7% 105,067 -12 -14 1.05%
1992 29% Bill Clinton (D) 59,616 51.7% George Bush* (R) 37,250 32.3% 18,449 16.0% 115,315 0 -5 1.04%
* incumbent           PSV: percent of state vote
"2020 redist": shows what the results of the 2020 Presidential election would have been under the current (redistricted) boundaries of this district.

Historical Demographic Breakdown for Congressional District 31, CA


NOTE: Data prior to 2022 is for the district which previously covered much of this area, regardless of district number.

YearPopWhiteBlack IndianAsian2+ RacesHispanic
2021 738,315 13.4% 2.3% 0.2% 19.7% 2.3% 61.8%
2020 700,726 12.4% 2.6% 19.2% 4.8% 61.0%
2012 693,701 15.2% 2.7% 0.5% 16.4% 3.3% 61.9%
2010 642,236 10.5% 1.9% 0.2% 22.2% 1.0% 64.2%
2002 639,087 14.8% 2.6% 0.3% 18.5% 1.4% 62.3%
2000 600,376 5.7% 1.3% 1.1% 28.3% 4.2% 59.4%
1992 572,643 16.5% 1.7% 0.5% 22.8% 58.5%

Voter Registration Data for Congressional District 31, CA

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2022 407,330 87,185 21.4% 198,029 48.6% 122,116 30.0% Dem +110,844 Dem +27.2% 72%
VAPOP% is the estimated percentage of voting age population that is registered.
Registration data may include "inactive" voters.   Data for each year pertains to the November elections.