† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupOceanoCaliforniaUnited States
German13.6%6.8%12.5%
English13.2%6.3%9.5%
Irish11.6%5.9%9.4%
Italian5.8%3.4%4.8%
Scottish2.6%0.9%1.3%
French2.3%1.3%1.6%
American2.0%2.8%5.3%
Portuguese1.9%——
Mexican30.2%32.3%11.3%
Spanish1.3%0.3%—
Spaniard0.9%0.3%—
Puerto Rican0.6%0.6%1.8%
Salvadoran0.4%2.0%0.7%
Cuban0.3%—0.7%
Guatemalan0.3%1.3%0.5%
Peruvian0.3%——
Chinese0.2%3.9%1.3%
Filipino0.2%3.3%0.9%
Japanese0.1%0.6%0.2%
Korean0.1%1.2%0.4%
Asian Indian0.1%2.3%1.4%
Vietnamese0.1%1.7%0.6%
Aztec4.3%0.3%—
Maya1.4%——
Samoan1.4%——
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Oceano
California
United States
Median age
46.4
37.9
39.1
Age 18–24
7.2%
9.1%
9.2%
Age 65 and older
27.4%
15.6%
17.2%
Household economy
Measure
Oceano
California
United States
Median household income
$71,598
$99,122
$84,427
Poverty rate
17.2%
12.0%
12.5%
Bachelor's degree or higher (25+)
21.2%
36.6%
35.6%
Languages at home
Measure
Oceano
California
United States
Speaks a non-English language at home
22.4%
44.4%
22.3%
Spanish
20.4%
28.4%
13.6%
Religious landscape
Measure
Oceano
California
United States
Catholic
—
26.2%
18.6%
Evangelical Protestant
—
9.0%
16.5%
Unclaimed / not counted
—
55.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Oceano, California
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+7.4%
2008
+19.7%
2012
+19.0%
2016
+16.4%
2020
+17.8%
2024
+12.6%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
54.8%Harris1,602
42.2%Trump1,234
3.0%
D+12.6
R+5.2
D+14.1
2,924
D
57.7%Biden1,903
39.9%Trump1,317
2.4%
D+17.8
D+1.4
D+13.3
3,298
D
54.6%Clinton1,460
38.2%Trump1,021
7.3%
D+16.4
R+2.6
D+14.3
2,676
D
57.6%Obama1,320
38.6%Romney884
3.8%
D+19.0
R+0.6
D+15.2
2,290
D
59.4%Obama1,373
39.8%McCain919
0.8%
D+19.7
D+12.2
D+12.4
2,310
D
52.5%Kerry1,185
45.1%Bush1,017
2.4%
D+7.4
—
D+9.9
2,256
Oceano's population skews heavily Latino — over 60% by recent estimates — setting it apart from neighboring Central Coast communities and influencing turnout patterns in San Luis Obispo County's down-ballot races.
Across the recorded series it reached a Democratic high of 19.7 points in 2008. Between 2020 and 2024 the city moved 5.2 points toward the Republican candidate; the 2024 margin was 12.6 points.
A population of 7,128, a 52% non-Hispanic-white share, and a median household income of $71,598 describe the city. The city's voting pattern over the last decade is most similar to that of North Valley and Calistoga.
Akashic
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
In 2024, Oceano, California voted Democratic by 12.6 points (D+12.6), carried by the Democratic candidate. Out of 2,924 votes cast, 1,602 went Democratic and 1,234 went Republican.
How many people live in Oceano, California?
Oceano, California has a population of 7,128 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Oceano, California?
Median household income in Oceano, California is $71,598 — below the national median of $80,734. The California state median is $99,122.
What is the political history of Oceano, California?
Akashic tracks 6 presidential elections in Oceano, California from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
