Boone County, Illinois
Precinct data
Results by precinct
75 precincts · 24,217 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -BELVIDERE 17BELVIDERE 17 | 467 | 798 | 25 | 1,290 | 36.2% | 61.9% | R+25.7 |
|---|---|---|---|---|---|---|---|
| Precinct -BELVIDERE 16BELVIDERE 16 | 551 | 679 | 44 | 1,274 | 43.2% | 53.3% | R+10.0 |
| Precinct -BELVIDERE 18BELVIDERE 18 | 464 | 722 | 45 | 1,231 | 37.7% | 58.7% | R+21.0 |
| Precinct -POPLAR GROVE 02POPLAR GROVE 02 | 453 | 685 | 24 | 1,162 | 39.0% | 59.0% | R+20.0 |
| Precinct -BONUS 01BONUS 01 | 441 | 684 | 21 | 1,146 | 38.5% | 59.7% | R+21.2 |
| Precinct -BELVIDERE 14BELVIDERE 14 | 487 | 589 | 34 | 1,110 | 43.9% | 53.1% | R+9.2 |
| Precinct -BELVIDERE 13BELVIDERE 13 | 399 | 593 | 36 | 1,028 | 38.8% | 57.7% | R+18.9 |
| Precinct -BELVIDERE 04BELVIDERE 04 | 505 | 462 | 32 | 999 | 50.6% | 46.2% | D+4.3 |
| Precinct -BONUS 02BONUS 02 | 467 | 500 | 28 | 995 | 46.9% | 50.3% | R+3.3 |
| Precinct -CALEDONIA 02CALEDONIA 02 | 428 | 535 | 21 | 984 | 43.5% | 54.4% | R+10.9 |
| Precinct -CALEDONIA 04CALEDONIA 04 | 352 | 556 | 35 | 943 | 37.3% | 59.0% | R+21.6 |
| Precinct -CALEDONIA 03CALEDONIA 03 | 400 | 514 | 24 | 938 | 42.6% | 54.8% | R+12.2 |
| Precinct -CALEDONIA 05CALEDONIA 05 | 381 | 476 | 27 | 884 | 43.1% | 53.8% | R+10.7 |
| Precinct -BELVIDERE 10BELVIDERE 10 | 376 | 473 | 29 | 878 | 42.8% | 53.9% | R+11.0 |
| Precinct -BOONEBOONE | 274 | 491 | 22 | 787 | 34.8% | 62.4% | R+27.6 |
| Precinct -BELVIDERE 09BELVIDERE 09 | 323 | 424 | 21 | 768 | 42.1% | 55.2% | R+13.2 |
| Precinct -FLORA 01FLORA 01 | 383 | 364 | 18 | 765 | 50.1% | 47.6% | D+2.5 |
| Precinct -BELVIDERE 06BELVIDERE 06 | 343 | 359 | 22 | 724 | 47.4% | 49.6% | R+2.2 |
| Precinct -BELVIDERE 03BELVIDERE 03 | 292 | 316 | 14 | 622 | 46.9% | 50.8% | R+3.9 |
| Precinct -BELVIDERE 02BELVIDERE 02 | 276 | 296 | 9 | 581 | 47.5% | 50.9% | R+3.4 |
| Precinct -MANCHESTERMANCHESTER | 190 | 374 | 12 | 576 | 33.0% | 64.9% | R+31.9 |
| Precinct -POPLAR GROVE 03POPLAR GROVE 03 | 245 | 306 | 11 | 562 | 43.6% | 54.4% | R+10.9 |
| Precinct -BELVIDERE 07BELVIDERE 07 | 248 | 251 | 17 | 516 | 48.1% | 48.6% | R+0.6 |
| Precinct -SPRINGSPRING | 140 | 335 | 10 | 485 | 28.9% | 69.1% | R+40.2 |
| Precinct -FLORA 02FLORA 02 | 147 | 274 | 9 | 430 | 34.2% | 63.7% | R+29.5 |
| Precinct -BELVIDERE 11BELVIDERE 11 | 188 | 207 | 8 | 403 | 46.7% | 51.4% | R+4.7 |
| Precinct -POPLAR GROVE 05POPLAR GROVE 05 | 134 | 234 | 9 | 377 | 35.5% | 62.1% | R+26.5 |
| Precinct -BELVIDERE 15BELVIDERE 15 | 128 | 168 | 7 | 303 | 42.2% | 55.4% | R+13.2 |
| Precinct -BELVIDERE 05BELVIDERE 05 | 137 | 147 | 6 | 290 | 47.2% | 50.7% | R+3.4 |
| Precinct -BELVIDERE 08BELVIDERE 08 | 114 | 155 | 8 | 277 | 41.2% | 56.0% | R+14.8 |
| Precinct -BELVIDERE 12BELVIDERE 12 | 78 | 140 | 7 | 225 | 34.7% | 62.2% | R+27.6 |
| Precinct -CALEDONIA 01CALEDONIA 01 | 62 | 94 | 8 | 164 | 37.8% | 57.3% | R+19.5 |
| Precinct -BELVIDERE 01BELVIDERE 01 | 80 | 78 | 5 | 163 | 49.1% | 47.9% | D+1.2 |
| Precinct -POPLAR GROVE 01POPLAR GROVE 01 | 46 | 95 | 2 | 143 | 32.2% | 66.4% | R+34.3 |
| Precinct -POPLAR GROVE 04POPLAR GROVE 04 | 46 | 57 | 0 | 103 | 44.7% | 55.3% | R+10.7 |
| Precinct -FLORA 03FLORA 03 | 31 | 57 | 3 | 91 | 34.1% | 62.6% | R+28.6 |
| BELVIDERE 1 Voting District17_1700701001 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 10 Voting District17_1700701010 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 11 Voting District17_1700701011 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 12 Voting District17_1700701012 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 13 Voting District17_1700701013 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 14 Voting District17_1700701014 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 15 Voting District17_1700701015 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 16 Voting District17_1700701016 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 17 Voting District17_1700701017 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 18 Voting District17_1700701018 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 19 Voting District17_1700701019 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 2 Voting District17_1700701002 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 20 Voting District17_1700701020 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 21 Voting District17_1700701021 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 22 Voting District17_1700701022 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 3 Voting District17_1700701003 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 4 Voting District17_1700701004 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 5 Voting District17_1700701005 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 6 Voting District17_1700701006 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 7 Voting District17_1700701007 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 8 Voting District17_1700701008 | 0 | 0 | 0 | 0 | — | — | Even |
| BELVIDERE 9 Voting District17_1700701009 | 0 | 0 | 0 | 0 | — | — | Even |
| BONUS 1 Voting District17_1700706001 | 0 | 0 | 0 | 0 | — | — | Even |
| BONUS 2 Voting District17_1700706002 | 0 | 0 | 0 | 0 | — | — | Even |
| BONUS 3 Voting District17_1700706003 | 0 | 0 | 0 | 0 | — | — | Even |
| BOONE 1 Voting District17_1700707001 | 0 | 0 | 0 | 0 | — | — | Even |
| BOONE 2 Voting District17_1700707002 | 0 | 0 | 0 | 0 | — | — | Even |
| CALEDONIA 1 Voting District17_1700703001 | 0 | 0 | 0 | 0 | — | — | Even |
| CALEDONIA 2 Voting District17_1700703002 | 0 | 0 | 0 | 0 | — | — | Even |
| CALEDONIA 3 Voting District17_1700703003 | 0 | 0 | 0 | 0 | — | — | Even |
| FLORA 1 Voting District17_1700702001 | 0 | 0 | 0 | 0 | — | — | Even |
| FLORA 2 Voting District17_1700702002 | 0 | 0 | 0 | 0 | — | — | Even |
| LEROY Voting District17_1700708001 | 0 | 0 | 0 | 0 | — | — | Even |
| MANCHESTER Voting District17_1700704001 | 0 | 0 | 0 | 0 | — | — | Even |
| POPLAR GROVE 1 Voting District17_1700709001 | 0 | 0 | 0 | 0 | — | — | Even |
| POPLAR GROVE 2 Voting District17_1700709002 | 0 | 0 | 0 | 0 | — | — | Even |
| POPLAR GROVE 3 Voting District17_1700709003 | 0 | 0 | 0 | 0 | — | — | Even |
| Precinct -LEROYLEROY | 0 | 0 | 0 | 0 | — | — | Even |
| SPRING Voting District17_1700705001 | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −54.6% |
| 1896 | −63.8% |
| 1900 | −61.8% |
| 1904 | −76.3% |
| 1908 | −60.1% |
| 1912 | −22.3% |
| 1916 | −59.5% |
| 1920 | −81.2% |
| 1924 | −70.0% |
| 1928 | −62.3% |
| 1932 | −39.7% |
| 1936 | −37.3% |
| 1940 | −47.0% |
| 1944 | −46.6% |
| 1948 | −43.2% |
| 1952 | −48.6% |
| 1956 | −56.0% |
| 1960 | −43.1% |
| 1964 | −15.5% |
| 1968 | −32.9% |
| 1972 | −38.1% |
| 1976 | −18.2% |
| 1980 | −30.3% |
| 1984 | −33.8% |
| 1988 | −24.0% |
| 1992 | −3.5% |
| 1996 | −6.4% |
| 2000 | −13.8% |
| 2004 | −14.6% |
| 2008 | +4.2% |
| 2012 | −5.7% |
| 2016 | −14.3% |
| 2020 | −12.8% |
| 2024 | −14.5% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 40.1%7,022 | 58.0%10,157 | 17,516 |
| 2020 | R | 40.9%10,090 | 55.1%13,579 | 24,662 |
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 33,357 |
| 2018 | 34,647 |
| 2020 | 27,410 |
| 2022 | 30,454 |
| 2024 | 48,465 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−3 net domestic migration · 2025
Net −2,356 over 2011–2025 · gain loss
Arrivals reported $67,459 in average income, against $85,515 for residents who stayed — 21% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+7.1 on average — 22 points more Democratic-leaning than Boone County, IL itself (R+14.5).
Where arrivals came from lean of each source
- Winnebago County, IL446D+0.6
- Kane County, IL154D+9.3
- McHenry County, IL151R+5.3
- Cook County, IL142D+41.6
- DuPage County, IL48D+13.1
- DeKalb County, IL44D+2.0
Where departures went households, 2022–23
- Winnebago County, IL629
- Cook County, IL107
- McHenry County, IL85
- Kane County, IL56
- Rock County, WI46
- DeKalb County, IL36
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 | −207 |
| 2012 | −602 |
| 2013 | −83 |
| 2014 | −222 |
| 2015 | −361 |
| 2016 | −189 |
| 2017 | −257 |
| 2018 | −133 |
| 2019 | −84 |
| 2021 | −184 |
| 2022 | −80 |
| 2023 | +106 |
| 2024 | −57 |
| 2025 | −3 |
Boone County sits at the northern edge of the Chicago metro's exurban fringe, where a legacy of factory employment has gradually given way to commuter households. Its R+14.5 presidential margin in 2024 reflects a rural-leaning electorate despite modest population growth.
Across the recorded series it reached a Democratic high of 4.2 points in 2008 and a Republican high of 81.2 points in 1920. Between 2020 and 2024 the county moved 1.7 points toward the Republican candidate; the 2024 margin was 14.5 points.
A population of 53,230, a 68% non-Hispanic-white share, and a median household income of $84,571 describe the county. The county's voting pattern over the last decade is most similar to that of McHenry County and DeKalb 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 →
Boone County, Illinois. Akashic. https://akashic.app/county/17007/. Accessed May 20, 2026. License: CC BY 4.0.