Ogle County, Illinois
Precinct data
Results by precinct
103 precincts · 26,094 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -Scott 1Scott 1 | 480 | 1,031 | 43 | 1,554 | 30.9% | 66.3% | R+35.5 |
|---|---|---|---|---|---|---|---|
| Precinct -Marion 2Marion 2 | 350 | 713 | 29 | 1,092 | 32.1% | 65.3% | R+33.2 |
| Precinct -Byron 2Byron 2 | 333 | 577 | 25 | 935 | 35.6% | 61.7% | R+26.1 |
| Precinct -Byron 4Byron 4 | 271 | 613 | 27 | 911 | 29.7% | 67.3% | R+37.5 |
| Precinct -Monroe 1Monroe 1 | 249 | 616 | 23 | 888 | 28.0% | 69.4% | R+41.3 |
| Precinct -Byron 1Byron 1 | 320 | 533 | 27 | 880 | 36.4% | 60.6% | R+24.2 |
| Precinct -Flagg 4Flagg 4 | 265 | 560 | 21 | 846 | 31.3% | 66.2% | R+34.9 |
| Precinct -Byron 3Byron 3 | 300 | 441 | 25 | 766 | 39.2% | 57.6% | R+18.4 |
| Precinct -Flagg 5Flagg 5 | 284 | 393 | 33 | 710 | 40.0% | 55.4% | R+15.4 |
| Precinct -Marion 1Marion 1 | 209 | 471 | 25 | 705 | 29.6% | 66.8% | R+37.2 |
| Precinct -Rockvale 1Rockvale 1 | 248 | 392 | 13 | 653 | 38.0% | 60.0% | R+22.1 |
| Precinct -Flagg 8Flagg 8 | 267 | 352 | 33 | 652 | 41.0% | 54.0% | R+13.0 |
| Precinct -Taylor 1Taylor 1 | 262 | 340 | 22 | 624 | 42.0% | 54.5% | R+12.5 |
| Precinct -Leaf River 1Leaf River 1 | 172 | 415 | 16 | 603 | 28.5% | 68.8% | R+40.3 |
| Precinct -Mt. Morris 4Mt. Morris 4 | 230 | 356 | 14 | 600 | 38.3% | 59.3% | R+21.0 |
| Precinct -Pine Rock 1Pine Rock 1 | 143 | 443 | 10 | 596 | 24.0% | 74.3% | R+50.3 |
| Precinct -Marion 3Marion 3 | 198 | 367 | 13 | 578 | 34.3% | 63.5% | R+29.2 |
| Precinct -Flagg 3Flagg 3 | 262 | 290 | 23 | 575 | 45.6% | 50.4% | R+4.9 |
| Precinct -Oregon-Nashua 6Oregon-Nashua 6 | 190 | 346 | 23 | 559 | 34.0% | 61.9% | R+27.9 |
| Precinct -Forreston 1Forreston 1 | 116 | 385 | 10 | 511 | 22.7% | 75.3% | R+52.6 |
| Precinct -Oregon-Nashua 4Oregon-Nashua 4 | 178 | 306 | 11 | 495 | 36.0% | 61.8% | R+25.9 |
| Precinct -Buffalo 1Buffalo 1 | 141 | 320 | 18 | 479 | 29.4% | 66.8% | R+37.4 |
| Precinct -Buffalo 3Buffalo 3 | 165 | 298 | 10 | 473 | 34.9% | 63.0% | R+28.1 |
| Precinct -Forreston 2Forreston 2 | 134 | 308 | 15 | 457 | 29.3% | 67.4% | R+38.1 |
| Precinct -Rockvale 2Rockvale 2 | 133 | 310 | 10 | 453 | 29.4% | 68.4% | R+39.1 |
| Precinct -Flagg 6Flagg 6 | 183 | 243 | 19 | 445 | 41.1% | 54.6% | R+13.5 |
| Precinct -Dement 1Dement 1 | 153 | 267 | 21 | 441 | 34.7% | 60.5% | R+25.9 |
| Precinct -Flagg 7Flagg 7 | 186 | 238 | 11 | 435 | 42.8% | 54.7% | R+12.0 |
| Precinct -Grand Detour 1Grand Detour 1 | 127 | 286 | 16 | 429 | 29.6% | 66.7% | R+37.1 |
| Precinct -Mt. Morris 3Mt. Morris 3 | 151 | 250 | 16 | 417 | 36.2% | 60.0% | R+23.7 |
| Precinct -Buffalo 2Buffalo 2 | 126 | 273 | 13 | 412 | 30.6% | 66.3% | R+35.7 |
| Precinct -Pine Creek 1Pine Creek 1 | 114 | 277 | 12 | 403 | 28.3% | 68.7% | R+40.4 |
| Precinct -Oregon-Nashua 1Oregon-Nashua 1 | 182 | 212 | 8 | 402 | 45.3% | 52.7% | R+7.5 |
| Precinct -Mt. Morris 1Mt. Morris 1 | 153 | 227 | 4 | 384 | 39.8% | 59.1% | R+19.3 |
| Precinct -White Rock 1White Rock 1 | 102 | 263 | 13 | 378 | 27.0% | 69.6% | R+42.6 |
| Precinct -Flagg 11Flagg 11 | 156 | 211 | 10 | 377 | 41.4% | 56.0% | R+14.6 |
| Precinct -Flagg 9Flagg 9 | 151 | 201 | 16 | 368 | 41.0% | 54.6% | R+13.6 |
| Precinct -Flagg 2Flagg 2 | 161 | 191 | 10 | 362 | 44.5% | 52.8% | R+8.3 |
| Precinct -Flagg 1Flagg 1 | 132 | 208 | 9 | 349 | 37.8% | 59.6% | R+21.8 |
| Precinct -Oregon-Nashua 3Oregon-Nashua 3 | 135 | 200 | 9 | 344 | 39.2% | 58.1% | R+18.9 |
| Precinct -Oregon-Nashua 2Oregon-Nashua 2 | 156 | 168 | 8 | 332 | 47.0% | 50.6% | R+3.6 |
| Precinct -Lynnville 1Lynnville 1 | 81 | 224 | 9 | 314 | 25.8% | 71.3% | R+45.5 |
| Precinct -Oregon-Nashua 5Oregon-Nashua 5 | 112 | 176 | 10 | 298 | 37.6% | 59.1% | R+21.5 |
| Precinct -Maryland 1Maryland 1 | 67 | 224 | 3 | 294 | 22.8% | 76.2% | R+53.4 |
| Precinct -Mt. Morris 2Mt. Morris 2 | 75 | 189 | 2 | 266 | 28.2% | 71.1% | R+42.9 |
| Precinct -Flagg 10Flagg 10 | 94 | 142 | 7 | 243 | 38.7% | 58.4% | R+19.8 |
| Precinct -Lincoln 1Lincoln 1 | 54 | 176 | 7 | 237 | 22.8% | 74.3% | R+51.5 |
| Precinct -Woosung 1Woosung 1 | 56 | 151 | 5 | 212 | 26.4% | 71.2% | R+44.8 |
| Precinct -Brookville 1Brookville 1 | 35 | 106 | 1 | 142 | 24.6% | 74.6% | R+50.0 |
| Precinct -Eagle Point 1Eagle Point 1 | 26 | 99 | 3 | 128 | 20.3% | 77.3% | R+57.0 |
| Precinct -Lafayette 1Lafayette 1 | 15 | 72 | 0 | 87 | 17.2% | 82.8% | R+65.5 |
| BROOKVILLE Voting District17_1714100001 | 0 | 0 | 0 | 0 | — | — | Even |
| BUFFALO 1 Voting District17_1714100002 | 0 | 0 | 0 | 0 | — | — | Even |
| BUFFALO 2 Voting District17_1714100003 | 0 | 0 | 0 | 0 | — | — | Even |
| BUFFALO 3 Voting District17_1714100004 | 0 | 0 | 0 | 0 | — | — | Even |
| BYRON 1 Voting District17_1714100005 | 0 | 0 | 0 | 0 | — | — | Even |
| BYRON 2 Voting District17_1714100006 | 0 | 0 | 0 | 0 | — | — | Even |
| BYRON 3 Voting District17_1714100007 | 0 | 0 | 0 | 0 | — | — | Even |
| BYRON 4 Voting District17_1714100008 | 0 | 0 | 0 | 0 | — | — | Even |
| DEMENT Voting District17_1714100009 | 0 | 0 | 0 | 0 | — | — | Even |
| EAGLE POINT Voting District17_1714100010 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 1 Voting District17_1714100011 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 10 Voting District17_1714100020 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 11 Voting District17_1714100021 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 2 Voting District17_1714100012 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 3 Voting District17_1714100013 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 4 Voting District17_1714100014 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 5 Voting District17_1714100015 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 6 Voting District17_1714100016 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 7 Voting District17_1714100017 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 8 Voting District17_1714100018 | 0 | 0 | 0 | 0 | — | — | Even |
| FLAGG 9 Voting District17_1714100019 | 0 | 0 | 0 | 0 | — | — | Even |
| FORRESTON 1 Voting District17_1714100022 | 0 | 0 | 0 | 0 | — | — | Even |
| FORRESTON 2 Voting District17_1714100023 | 0 | 0 | 0 | 0 | — | — | Even |
| FORRESTON 3 Voting District17_1714100024 | 0 | 0 | 0 | 0 | — | — | Even |
| GRAND DETOUR Voting District17_1714100025 | 0 | 0 | 0 | 0 | — | — | Even |
| LAFAYETTE Voting District17_1714100026 | 0 | 0 | 0 | 0 | — | — | Even |
| LEAF RIVER Voting District17_1714100027 | 0 | 0 | 0 | 0 | — | — | Even |
| LINCOLN Voting District17_1714100028 | 0 | 0 | 0 | 0 | — | — | Even |
| LYNNVILLE Voting District17_1714100029 | 0 | 0 | 0 | 0 | — | — | Even |
| MARION 1 Voting District17_1714100030 | 0 | 0 | 0 | 0 | — | — | Even |
| MARION 2 Voting District17_1714100031 | 0 | 0 | 0 | 0 | — | — | Even |
| MARION 3 Voting District17_1714100032 | 0 | 0 | 0 | 0 | — | — | Even |
| MARYLAND Voting District17_1714100033 | 0 | 0 | 0 | 0 | — | — | Even |
| MONROE Voting District17_1714100034 | 0 | 0 | 0 | 0 | — | — | Even |
| MT MORRIS 1 Voting District17_1714100035 | 0 | 0 | 0 | 0 | — | — | Even |
| MT MORRIS 2 Voting District17_1714100036 | 0 | 0 | 0 | 0 | — | — | Even |
| MT MORRIS 3 Voting District17_1714100037 | 0 | 0 | 0 | 0 | — | — | Even |
| MT MORRIS 4 Voting District17_1714100038 | 0 | 0 | 0 | 0 | — | — | Even |
| OREGON-Nashua 1 Voting District17_1714100039 | 0 | 0 | 0 | 0 | — | — | Even |
| OREGON-Nashua 2 Voting District17_1714100040 | 0 | 0 | 0 | 0 | — | — | Even |
| OREGON-Nashua 3 Voting District17_1714100041 | 0 | 0 | 0 | 0 | — | — | Even |
| OREGON-Nashua 4 Voting District17_1714100042 | 0 | 0 | 0 | 0 | — | — | Even |
| OREGON-Nashua 5 Voting District17_1714100043 | 0 | 0 | 0 | 0 | — | — | Even |
| OREGON-Nashua 6 Voting District17_1714100044 | 0 | 0 | 0 | 0 | — | — | Even |
| PINE CREEK Voting District17_1714100045 | 0 | 0 | 0 | 0 | — | — | Even |
| PINE ROCK Voting District17_1714100046 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCKVALE 1 Voting District17_1714100047 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCKVALE 2 Voting District17_1714100048 | 0 | 0 | 0 | 0 | — | — | Even |
| SCOTT Voting District17_1714100049 | 0 | 0 | 0 | 0 | — | — | Even |
| TAYLOR Voting District17_1714100050 | 0 | 0 | 0 | 0 | — | — | Even |
| WHITE ROCK Voting District17_1714100051 | 0 | 0 | 0 | 0 | — | — | Even |
| WOOSUNG Voting District17_1714100052 | 0 | 0 | 0 | 0 | — | — | Even |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −26.1% |
| 1896 | −40.7% |
| 1900 | −40.5% |
| 1904 | −57.4% |
| 1908 | −44.1% |
| 1912 | −3.9% |
| 1916 | −44.2% |
| 1920 | −67.7% |
| 1924 | −58.1% |
| 1928 | −56.7% |
| 1932 | −20.2% |
| 1936 | −24.4% |
| 1940 | −41.8% |
| 1944 | −45.7% |
| 1948 | −42.8% |
| 1952 | −55.7% |
| 1956 | −56.5% |
| 1960 | −46.8% |
| 1964 | −20.3% |
| 1968 | −44.0% |
| 1972 | −47.9% |
| 1976 | −25.9% |
| 1980 | −44.9% |
| 1984 | −47.3% |
| 1988 | −34.5% |
| 1992 | −12.4% |
| 1996 | −15.2% |
| 2000 | −22.6% |
| 2004 | −24.5% |
| 2008 | −7.6% |
| 2012 | −16.7% |
| 2016 | −26.0% |
| 2020 | −25.9% |
| 2024 | −29.3% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 35.7%6,920 | 62.4%12,105 | 19,402 |
| 2020 | R | 36.4%9,492 | 59.6%15,520 | 26,054 |
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 34,029 |
| 2018 | 32,882 |
| 2020 | 34,202 |
| 2022 | 34,724 |
| 2024 | 37,669 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+167 net domestic migration · 2025
Net −3,380 over 2011–2025 · gain loss
Arrivals reported $57,591 in average income, against $81,190 for residents who stayed — 29% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+2.7 on average — 27 points more Democratic-leaning than Ogle County, IL itself (R+29.3).
Where arrivals came from lean of each source
- Winnebago County, IL215D+0.6
- DeKalb County, IL137D+2.0
- Lee County, IL131R+22.2
- Cook County, IL51D+41.6
- Stephenson County, IL47R+19.4
- Kane County, IL44D+9.3
Where departures went households, 2022–23
- Winnebago County, IL228
- Lee County, IL118
- DeKalb County, IL103
- Stephenson County, IL58
- Whiteside County, IL57
- Cook County, IL53
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 | −431 |
| 2012 | −349 |
| 2013 | −587 |
| 2014 | −402 |
| 2015 | −406 |
| 2016 | −486 |
| 2017 | −182 |
| 2018 | −185 |
| 2019 | −172 |
| 2021 | −142 |
| 2022 | −32 |
| 2023 | −60 |
| 2024 | −113 |
| 2025 | +167 |
Ogle County's mix of small manufacturing towns and agricultural townships has trended steadily more Republican over the past four presidential cycles, reaching a 29-point margin in 2024 despite modest population decline.
Across the recorded series it reached a Republican high of 67.7 points in 1920. Between 2020 and 2024 the county moved 3.4 points toward the Republican candidate; the 2024 margin was 29.3 points.
A population of 51,495, a 83% non-Hispanic-white share, and a median household income of $82,132 describe the county. The county's voting pattern over the last decade is most similar to that of Boone County and Walworth 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 →
Ogle County, Illinois. Akashic. https://akashic.app/county/17141/. Accessed May 20, 2026. License: CC BY 4.0.