elect.info
DATA COVERAGE not externally verified tier raw_mirror vintage 2026-08-27 coverage 1980-2024 · 2026 Midterms in flight! money live · figures computing (best estimates)
Dollar figures are still computing and reflect best estimates while the corrected-financial reconciliation completes. Relationships, counts, and dates are final.

Boulder County

county · 08013
This county — demographics, elections & registration at a glance full page ↗
Partisan lean · 240 precincts · CO D+56.6
Dem 159089 (77.2%) Rep 42501 (20.6%) Total 206111

RDH precinct returns aggregated to county (spatial assignment) · (Dem−Rep)÷total · 2020 presidential · counts, not dollars.

↑ CO state page County map See precincts on the map

Precincts

top 25 by turnout
PrecinctLeanDemRepTotal
2171207302 D+57.8 1367 350 1759
4171107617 D+48.9 1218 402 1670
2173307409 D+36.4 1092 496 1635
2181007822 D+72.1 1344 198 1589
2171207300 D+46.4 1140 403 1588
2181007808 D+80.7 1421 140 1587
4171107620 D+44.7 1125 419 1578
4171107647 D+25.7 969 565 1574
4171107619 D+52.2 1087 321 1468
2171207301 D+62.7 1164 253 1453
2181007503 D+57.1 1083 283 1400
2171207314 D+68.1 1167 214 1400
4171107618 D+46.1 1005 364 1392
4171207614 D+43.1 979 381 1386
2163307100 D+46.7 997 355 1376
2171207310 D+61.9 1087 246 1359
2171207212 D+64.5 1094 225 1347
2171207213 D+66.1 1089 214 1324
2173307411 D+44.3 933 352 1312
4171207600 D+23.1 785 484 1306
4171207603 D+27.6 812 454 1295
2181107917 D+53.9 983 285 1294
2173307413 D+38.7 881 380 1294
2163307101 D+52.4 964 290 1287
4171207610 D+40.9 874 355 1268

Each precinct links to its own page · click a shape on the precinct map to zoom in.

Machine-readable: county-rollup?state_fips=08