† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · 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
GroupSan Luis Obispo-Paso Robles, CACaliforniaUnited States
German14.9%6.8%12.5%
English14.4%6.3%9.5%
Irish12.7%5.9%9.4%
Italian6.3%3.4%4.8%
Scottish2.8%0.9%1.3%
French2.5%1.3%1.6%
American2.2%2.8%5.3%
Portuguese2.1%——
Mexican21.0%32.3%11.3%
Spanish0.9%0.3%—
Spaniard0.6%0.3%—
Puerto Rican0.4%0.6%1.8%
Salvadoran0.3%2.0%0.7%
Cuban0.2%—0.7%
Guatemalan0.2%1.3%0.5%
Peruvian0.2%——
Chinese0.8%3.9%1.3%
Filipino0.8%3.3%0.9%
Japanese0.5%0.6%0.2%
Korean0.4%1.2%0.4%
Asian Indian0.3%2.3%1.4%
Vietnamese0.2%1.7%0.6%
African American†0.8%4.4%9.9%
Aztec0.3%0.3%—
Maya0.1%——
Samoan0.1%——
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
San Luis Obispo-Paso Robles, CA
California
United States
Median age
40.4
37.9
39.1
Age 18–24
14.9%
9.1%
9.2%
Age 65 and older
22.2%
15.6%
17.2%
Household economy
Measure
San Luis Obispo-Paso Robles, CA
California
United States
Median household income
$97,446
$99,122
$84,427
Poverty rate
12.9%
12.0%
12.5%
Bachelor's degree or higher (25+)
39.8%
36.6%
35.6%
Languages at home
Measure
San Luis Obispo-Paso Robles, CA
California
United States
Speaks a non-English language at home
17.5%
44.4%
22.3%
Spanish
13.0%
28.4%
13.6%
Religious landscape
Measure
San Luis Obispo-Paso Robles, CA
California
United States
Catholic
20.3%
26.2%
18.6%
Evangelical Protestant
10.8%
9.0%
16.5%
Unclaimed / not counted
61.3%
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.
San Luis Obispo-Paso Robles, CA
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−6.2%
1896
+10.1%
1900
+4.4%
1904
−23.1%
1908
−15.8%
1912
+40.5%
1916
+9.6%
1920
−37.4%
1924
−39.6%
1928
−23.4%
1932
+37.2%
1936
+23.8%
1940
+8.1%
1944
+1.7%
1948
−11.3%
1952
−31.0%
1956
−17.4%
1960
−8.7%
1964
+19.8%
1968
−9.5%
1972
−15.3%
1976
−5.3%
1980
−26.1%
1984
−28.7%
1988
−13.1%
1992
+3.6%
1996
−6.3%
2000
−11.3%
2004
−7.2%
2008
+5.3%
2012
+1.0%
2016
+8.0%
2020
+13.1%
2024
+10.9%
DemocraticRepublican
34 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.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
53.9%Harris81,314
43.1%Trump64,932
1.5%Kennedy2,188 +3
D+10.9
R+2.2
D+12.3
150,766
All 6 candidates in 2024 · 4 minor / independent
Kamala D HarrisDemocratic53.9%81,314
Donald J TrumpRepublican43.1%64,932
Robert F Kennedy Jr.Independent1.5%2,188
Jill SteinIndependent0.7%1,055
Chase OliverLibertarian0.6%880
Claudia De La CruzIndependent0.3%397
D
55.3%Biden88,310
42.2%Trump67,436
2.5%
D+13.1
D+5.1
D+8.6
159,714
D
48.9%Clinton67,107
40.9%Trump56,164
10.2%
D+8.0
D+7.0
D+5.9
137,202
D
48.6%Obama61,258
47.6%Romney59,967
3.8%
D+1.0
R+4.3
R+2.8
125,966
D
51.2%Obama68,176
45.9%McCain61,055
2.9%
D+5.3
D+12.5
R+1.9
133,155
R
45.5%Kerry58,742
52.7%Bush67,995
1.8%
R+7.2
D+4.2
R+4.7
129,050
R
40.9%Gore44,526
52.2%Bush56,859
6.9%
R+11.3
R+5.0
R+11.8
108,886
R
40.2%Clinton40,395
46.5%Dole46,733
13.3%
R+6.3
R+9.9
R+14.8
100,500
D
38.4%Clinton40,136
34.8%Bush36,384
26.9%
D+3.6
D+16.7
R+2.0
104,619
R
42.7%Dukakis35,667
55.8%Bush46,613
1.4%
R+13.1
D+15.6
R+5.4
83,467
R
35.0%Mondale26,946
63.7%Reagan49,035
1.3%
R+28.7
R+2.6
R+10.5
76,950
R
29.5%Carter20,508
55.6%Reagan38,631
14.9%
R+26.1
R+20.8
R+16.3
69,527
R
45.9%Carter24,926
51.2%Ford27,785
2.9%
R+5.3
D+10.0
R+7.3
54,298
R
40.7%McGovern20,779
56.0%Nixon28,566
3.3%
R+15.3
R+5.8
D+7.9
51,033
R
41.8%Humphrey15,828
51.3%Nixon19,420
7.0%
R+9.5
R+29.2
R+8.8
37,881
D
59.8%Johnson22,252
40.1%Goldwater14,906
0.1%
D+19.8
D+28.5
R+2.8
37,186
R
45.3%Kennedy14,975
54.0%Nixon17,862
0.7%
R+8.7
D+8.6
R+8.9
33,055
R
41.1%Stevenson11,407
58.5%Eisenhower16,223
0.4%
R+17.4
D+13.7
R+2.0
27,748
R
34.1%Stevenson8,761
65.1%Eisenhower16,733
0.8%
R+31.0
R+19.7
R+20.3
25,691
R
42.1%Truman8,135
53.5%Dewey10,325
4.4%
R+11.3
R+13.1
R+15.8
19,304
D
50.6%Roosevelt8,068
48.9%Dewey7,793
0.5%
D+1.7
R+6.4
R+5.8
15,936
D
53.4%Roosevelt8,499
45.3%Willkie7,204
1.4%
D+8.1
R+15.7
R+1.8
15,920
D
61.1%Roosevelt7,889
37.3%Landon4,812
1.6%
D+23.8
R+13.3
R+0.4
12,906
D
65.8%Roosevelt7,933
28.6%Hoover3,449
5.6%
D+37.2
D+60.6
D+19.4
12,062
R
37.4%Smith3,336
60.8%Hoover5,425
1.8%
R+23.4
D+16.2
R+6.0
8,920
R
9.4%Davis731
49.0%Coolidge3,804
41.6%
R+39.6
R+2.2
R+14.4
7,761
R
23.9%Cox1,606
61.3%Harding4,123
14.8%
R+37.4
R+47.1
R+11.2
6,725
D
49.9%Wilson3,539
40.2%Hughes2,854
9.9%
D+9.6
R+30.8
D+6.5
7,099
O
40.5%Wilson2,248
0.0%Taft0
59.5%
Roosevelt +19.0
D+56.3
D+20.9
5,553
R
34.9%Bryan1,381
50.8%Taft2,008
14.3%
R+15.8
D+7.3
R+6.3
3,956
R
31.8%Parker1,167
54.9%Roosevelt2,015
13.2%
R+23.1
R+27.5
R+3.5
3,667
D
50.2%Bryan1,713
45.8%McKinley1,564
4.0%
D+4.4
R+5.7
D+11.9
3,414
D
53.8%Bryan2,056
43.7%McKinley1,671
2.4%
D+10.1
D+16.3
D+16.2
3,820
R
31.9%Cleveland1,199
38.1%Harrison1,433
30.0%
R+6.2
—
R+7.9
3,761
Congressional elections · 3 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2024
D
53.1%77,525
46.9%68,569
146,094
2022
D
53.4%63,076
46.6%55,087
118,163
2018
D
100.0%107,269
0.0%0
107,269
voter registration
Registered voters
By party of registration, over time
Party registration · 2024D+3.5
vs
Presidential vote · 2024D+10.9
Registration leans Democratic; the presidential vote runs 7.4 points more Republican.
179,396 registered voters · 2024 · down from 181,647 in 2022
Domestic migration in San Luis Obispo-Paso Robles, CA in San Luis Obispo-Paso Robles, CA: net domestic migration by year
Year
Net domestic migration
2011
+839
2012
+2,644
2013
+1,038
2014
+1,937
2015
+1,364
2016
+1,260
2017
+536
2018
+873
2019
−245
2021
−2,276
2022
+2,598
2023
−806
2024
−575
2025
+281
Home to Cal Poly San Luis Obispo, the metro's electorate skews younger and college-educated relative to rural Central Coast neighbors, producing a 17-point Democratic presidential margin in 2024 despite a historically competitive past.
Across the recorded series it reached a Democratic high of 40.5 points in 1912 and a Republican high of 39.6 points in 1924. Between 2020 and 2024 the metro moved 2.2 points toward the Republican candidate; the 2024 margin was 10.9 points.
A population of 281,555, a 65% non-Hispanic-white share, and a median household income of $97,446 describe the metro. The metro's voting pattern over the last decade is most similar to that of Rifle, CO and Denver-Aurora-Centennial, CO.
Akashic
Political twins — metros
The metros 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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
San Luis Obispo-Paso Robles, CA, California. Akashic. https://akashic.app/cbsa/42020/. Accessed May 20, 2026. License: CC BY 4.0.
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How did San Luis Obispo-Paso Robles, CA, California vote in 2024?
In 2024, San Luis Obispo-Paso Robles, CA, California voted Democratic by 10.9 points (D+10.9), carried by the Democratic candidate. Out of 150,766 votes cast, 81,314 went Democratic and 64,932 went Republican.
When did San Luis Obispo-Paso Robles, CA, California last vote Republican?
The most recent presidential election in which San Luis Obispo-Paso Robles, CA, California voted Republican was 2004.
How many people live in San Luis Obispo-Paso Robles, CA, California?
San Luis Obispo-Paso Robles, CA, California has a population of 281,555 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in San Luis Obispo-Paso Robles, CA, California?
Median household income in San Luis Obispo-Paso Robles, CA, California is $97,446 — above the national median of $80,734. The California state median is $99,122.
What is the political history of San Luis Obispo-Paso Robles, CA, California?
Akashic tracks 34 presidential elections in San Luis Obispo-Paso Robles, CA, California from 1892 to 2024. Of those, 14 went Democratic and 19 went Republican.
