- Lead
- 3,105
- Total
- 15,989
- vs nation
- D+20.9
- Turnout
- 54.9%
Rio Arriba County, NM
▦ precinct · ▥ counties · ▢ no spatial detail
President margin by year
Place winner margin
President results by year
2024 turnout 54.9% of 29,271 citizens 18+
- Lead
- 5,582
- Total
- 16,628
- vs nation
- D+29.1
- Turnout
- 57.5%
- Lead
- 5,993
- Total
- 14,878
- vs nation
- D+38.2
- Turnout
- 52.0%
- Lead
- 8,068
- Total
- 15,343
- vs nation
- D+48.7
- Turnout
- —
- Lead
- 8,617
- Total
- 16,940
- vs nation
- D+43.6
- Turnout
- —
- Lead
- 4,604
- Total
- 14,999
- vs nation
- D+33.2
- Turnout
- —
- Lead
- 4,674
- Total
- 12,097
- vs nation
- D+38.1
- Turnout
- —
- Lead
- 5,414
- Total
- 11,305
- vs nation
- D+39.4
- Turnout
- —
Key facts
- 2024 presidential margin
- D+19.4MIT Election Lab
- Population
- 40,0702024 5-year
- Population density
- 6.8 / sq mi2024 5-year · TIGER/Line
- Land area
- 5,861 sq miTIGER/Line
- Median household income
- $57,1552024 5-year
- White (non-Hispanic)
- 14.0%2024 5-year
- Black
- 0.6%2024 5-year
- Hispanic / Latino
- 67.2%2024 5-year
- Peak Democratic margin
- D+52.6 in 2012MIT Election Lab
- Peak Republican margin
- R+31.9 in 1920MIT Election Lab
- Most similar
- San Miguel County, NM · twin score 98.6
Turnout and midterm durability
Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2016 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.
- 2024 turnout
- 54.9%16,068 participants ÷ 29,271 CVAP
- 2020→2022 drop-off
- +13.6 ptsVolatile
- Drop-off vs state
- -1.7 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026
- 41.3%–44.2%Recent-cycle and two-cycle persistence scenarios; not a forecast
Select a presidential cycle to show it on the map and results ledger above.
| Cycle | Participants | CVAP | Turnout | Series | Quality |
|---|---|---|---|---|---|
| 16,068 | 29,271 ± 475 | 54.9% | Audited | A/A | |
| 2022Mid | 13,038 | 29,696 ± 553 | 43.9% | Audited | A/A |
| 16,710 | 29,045 ± 637 | 57.5% | Audited | A/A | |
| 2018Mid | 12,890 | 29,152 ± 284 | 44.2% | Audited | A/A |
| 15,015 | 28,900 ± 374 | 52.0% | Audited | A/A | |
| 15,343 | 28,461 | 53.9% | Derived | — | |
| 16,940 | 28,287 | 59.9% | Derived | — | |
| 14,999 | 28,113 extrapolated | 53.4% | Derived | — |
Sources and methods
Audited cycles (2016, 2018, 2020, 2022, 2024) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2004, 2008, 2012) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.
- 2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
- 2022: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
- 2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
- 2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
- 2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
- 2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
- 2004 (derived): Certified presidential returns · extrapolated CVAP denominator; presidential votes cast — a floor on participation, not a ballot count; 2004 predates the ACS, so the denominator is a linear back-extrapolation from the 2008 and 2012 CVAP values, not a read figure.
Interactive election map
One map. Every available contest.
The map and local result cover Rio Arriba County only. The complete contest result is shown below for comparison.
Rio Arriba County result
0 precinct units · 0 candidate votes
Governor contest result
Loading the complete contest result…
Explore precinct resultsSearch, sort, compare years, or export CSV · 89 precincts
Precinct data
Results by precinct
89 precincts · 15,737 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -000038000038 | 462 | 304 | 19 | 785 | 58.9% | 38.7% | D+20.1 |
|---|---|---|---|---|---|---|---|
| Precinct -000069000069 | 405 | 305 | 0 | 710 | 57.0% | 43.0% | D+14.1 |
| Precinct -000004000004 | 308 | 321 | 7 | 636 | 48.4% | 50.5% | R+2.0 |
| Precinct -000070000070 | 328 | 299 | 0 | 627 | 52.3% | 47.7% | D+4.6 |
| Precinct -000063000063 | 349 | 232 | 14 | 595 | 58.7% | 39.0% | D+19.7 |
| Precinct -000059000059 | 437 | 114 | 0 | 551 | 79.3% | 20.7% | D+58.6 |
| Precinct -000057000057 | 356 | 186 | 0 | 542 | 65.7% | 34.3% | D+31.4 |
| Precinct -000067000067 | 267 | 247 | 6 | 520 | 51.3% | 47.5% | D+3.8 |
| Precinct -000037000037 | 271 | 248 | 0 | 519 | 52.2% | 47.8% | D+4.4 |
| Precinct -000064000064 | 287 | 224 | 0 | 511 | 56.2% | 43.8% | D+12.3 |
| Precinct -000001000001 | 348 | 136 | 11 | 495 | 70.3% | 27.5% | D+42.8 |
| Precinct -000060000060 | 390 | 94 | 8 | 492 | 79.3% | 19.1% | D+60.2 |
| Precinct -000036000036 | 212 | 270 | 0 | 482 | 44.0% | 56.0% | R+12.0 |
| Precinct -000045000045 | 284 | 193 | 0 | 477 | 59.5% | 40.5% | D+19.1 |
| Precinct -000065000065 | 301 | 161 | 0 | 462 | 65.2% | 34.8% | D+30.3 |
| Precinct -000027000027 | 323 | 137 | 0 | 460 | 70.2% | 29.8% | D+40.4 |
| Precinct -000026000026 | 301 | 149 | 9 | 459 | 65.6% | 32.5% | D+33.1 |
| Precinct -000068000068 | 243 | 189 | 0 | 432 | 56.3% | 43.8% | D+12.5 |
| Precinct -000048000048 | 313 | 98 | 11 | 422 | 74.2% | 23.2% | D+50.9 |
| Precinct -000011000011 | 184 | 206 | 0 | 390 | 47.2% | 52.8% | R+5.6 |
| Precinct -000056000056 | 254 | 130 | 0 | 384 | 66.1% | 33.9% | D+32.3 |
| Precinct -000066000066 | 191 | 181 | 0 | 372 | 51.3% | 48.7% | D+2.7 |
| Precinct -000071000071 | 231 | 120 | 0 | 351 | 65.8% | 34.2% | D+31.6 |
| Precinct -000058000058 | 187 | 155 | 7 | 349 | 53.6% | 44.4% | D+9.2 |
| Precinct -000002000002 | 198 | 74 | 7 | 279 | 71.0% | 26.5% | D+44.4 |
| Precinct -000039000039 | 156 | 121 | 0 | 277 | 56.3% | 43.7% | D+12.6 |
| Precinct -000061000061 | 157 | 115 | 0 | 272 | 57.7% | 42.3% | D+15.4 |
| Precinct -000073000073 | 165 | 104 | 0 | 269 | 61.3% | 38.7% | D+22.7 |
| Precinct -000010000010 | 135 | 129 | 0 | 264 | 51.1% | 48.9% | D+2.3 |
| Precinct -000047000047 | 156 | 94 | 0 | 250 | 62.4% | 37.6% | D+24.8 |
| Precinct -000024000024 | 112 | 108 | 0 | 220 | 50.9% | 49.1% | D+1.8 |
| Precinct -000062000062 | 121 | 83 | 0 | 204 | 59.3% | 40.7% | D+18.6 |
| Precinct -000025000025 | 104 | 88 | 0 | 192 | 54.2% | 45.8% | D+8.3 |
| Precinct -000040000040 | 106 | 71 | 0 | 177 | 59.9% | 40.1% | D+19.8 |
| Precinct -000023000023 | 49 | 116 | 0 | 165 | 29.7% | 70.3% | R+40.6 |
| Precinct -000049000049 | 129 | 31 | 0 | 160 | 80.6% | 19.4% | D+61.3 |
| Precinct -000022000022 | 30 | 113 | 0 | 143 | 21.0% | 79.0% | R+58.0 |
| Precinct -000072000072 | 81 | 57 | 0 | 138 | 58.7% | 41.3% | D+17.4 |
| Precinct -000046000046 | 76 | 53 | 0 | 129 | 58.9% | 41.1% | D+17.8 |
| Precinct -000074000074 | 101 | 28 | 0 | 129 | 78.3% | 21.7% | D+56.6 |
| Precinct -000028000028 | 70 | 56 | 0 | 126 | 55.6% | 44.4% | D+11.1 |
| Precinct -000003000003 | 51 | 35 | 0 | 86 | 59.3% | 40.7% | D+18.6 |
| Precinct -000013000013 | 50 | 22 | 0 | 72 | 69.4% | 30.6% | D+38.9 |
| Precinct -000012000012 | 37 | 28 | 0 | 65 | 56.9% | 43.1% | D+13.8 |
| Precinct -000035000035 | 27 | 26 | 0 | 53 | 50.9% | 49.1% | D+1.9 |
| Precinct -000014000014 | 20 | 8 | 0 | 28 | 71.4% | 28.6% | D+42.9 |
| Precinct -000021000021 | 9 | 7 | 0 | 16 | 56.3% | 43.8% | D+12.5 |
| Rio Arriba County Precinct 135_350391 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1035_3503910 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1135_3503911 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1235_3503912 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1335_3503913 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1435_3503914 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1535_3503915 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1635_3503916 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1735_3503917 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1835_3503918 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 1935_3503919 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 235_350392 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2035_3503920 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2135_3503921 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2235_3503922 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2335_3503923 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2435_3503924 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2535_3503925 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2635_3503926 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2735_3503927 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2835_3503928 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 2935_3503929 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 335_350393 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3035_3503930 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3135_3503931 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3235_3503932 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3335_3503933 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3435_3503934 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3535_3503935 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3635_3503936 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3735_3503937 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3835_3503938 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 3935_3503939 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 435_350394 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 4035_3503940 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 4135_3503941 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 4235_3503942 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 535_350395 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 635_350396 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 735_350397 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 835_350398 | 0 | 0 | 0 | 0 | — | — | No votes |
| Rio Arriba County Precinct 935_350399 | 0 | 0 | 0 | 0 | — | — | No votes |
presidential history
Party record book
Rio Arriba County, NM · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1912–2024 · 29 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Barack Obama2008
75.0%
12,703 votes · D+50.9
Runner-up · Barack Obama, 2012 · 74.7%
Republican
Warren G. Harding1920
66.0%
3,986 votes · R+31.9
Runner-up · Herbert Hoover, 1928 · 62.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
12,703votes
75.0% of the vote · D+50.9
Runner-up · Barack Obama, 2012 · 11,465 votes
Republican
Donald Trump2024
6,268votes
39.2% of the vote · D+19.4
Runner-up · Donald Trump, 2020 · 5,408 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Michael Dukakis1988
+49.9pts D vs U.S.
Place D+42.2 · U.S. R+7.7
Runner-up · Barack Obama, 2012 · +48.7 pts
Republican
William H. Taft1912
+40.0pts R vs U.S.
Place R+20.5 · U.S. D+19.5
Runner-up · Alf Landon, 1936 · +17.5 pts
Current officeholders
Seats representing Rio Arriba County, NM. A county elects none of these itself — they are the members for the 1 congressional, 2 state senate and 2 state house districts it falls inside, so parts of the county are represented by different members.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 70.5%10,776 | 29.5%4,518 | 15,294 |
| 2020 | D | 71.1%11,378 | 28.9%4,635 | 16,013 |
Registered voters
By party of registration, over time
Registration leans Democratic; the presidential vote runs 26 points more Republican than the rolls.
26,309 registered voters · 2026
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−99 net domestic migration · 2025
Net −2,913 over 2011–2025 · gain loss
Arrivals reported $58,443 in average income, against $56,473 for residents who stayed — 3% higher. (IRS SOI, 2022–23)
The places arrivals came from lean D+33.8 on average — 14 points more Democratic-leaning than Rio Arriba County, NM itself (D+19.4).
Where arrivals came from lean of each source
- Santa Fe County, NM213D+48.9
- Bernalillo County, NM92D+21.0
- Los Alamos County, NM38D+30.2
- Sandoval County, NM34D+5.8
- Taos County, NM30D+47.5
- San Juan County, NM21R+31.7
Where departures went households, 2022–23
- Santa Fe County, NM235
- Bernalillo County, NM115
- Sandoval County, NM63
- Taos County, NM34
- San Juan County, NM31
- Los Alamos County, NM27
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −310 |
| 2012 | −267 |
| 2013 | −430 |
| 2014 | −494 |
| 2015 | −538 |
| 2016 | −235 |
| 2017 | −103 |
| 2018 | −207 |
| 2019 | −88 |
| 2021 | +18 |
| 2022 | −122 |
| 2023 | −57 |
| 2024 | +19 |
| 2025 | −99 |
Rio Arriba's electorate is roughly 75% Hispanic, a demographic reality that has anchored consistent double-digit Democratic margins for decades. The county's rural high-desert geography and land-grant history make it culturally distinct from most of the rural West.
Across the recorded series it reached a Democratic high of 52.6 points in 2012 and a Republican high of 31.9 points in 1920. Between 2020 and 2024 the county moved 14.2 points toward the Republican candidate; the 2024 margin was 19.4 points.
A population of 40,070, a 14% non-Hispanic-white share, and a median household income of $57,155 describe the county. The county's voting pattern over the last decade is most similar to that of San Miguel County and Dimmit County.
The counties 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.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
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 →
Rio Arriba County, New Mexico. Akashic. https://akashic.app/county/35039/. Accessed May 20, 2026. License: CC BY 4.0.