Bureau County, Illinois
County seat: Princeton · Population 32,510 (2025) · 869 sq mi
Bureau County is the 46th most populous of Illinois's 102 counties, with 32,510 people (2025 estimate). Its county seat is Princeton. It is part of the Northwest region, one of the 10 Illinois economic development regions (DCEO). The map shows its 25 cities and towns and the 7 neighboring counties.
Bureau County facts
- County seat
- Princeton
- Population (2025 estimate)
- 32,510 −2.3% since 2020
- Land area
- 869 sq mi 8th largest of 102
- Water area
- 4 sq mi
- Population density
- 37 per sq mi
- Established
- 1837
- Named after
- Pierre Bureau North American fur trader
- Largest city
- Princeton 7,674
- Median household income
- $69,257
- Cities and towns
- 25
- ZIP codes
- 31
- Time zone
- Central
- FIPS code
- 17011
Cities and towns in Bureau County
Bureau County has 25 incorporated cities, towns and villages. Populations count the people living inside Bureau County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Princeton (county seat) | City | 7,674 | |
| Spring Valley | City | 5,408 | |
| De Pue | Village | 1,571 | |
| Ladd | Village | 1,384 | |
| Walnut | Village | 1,267 | |
| Wyanet | Village | 858 | |
| Sheffield | Village | 798 | |
| Tiskilwa | Village | 718 | |
| La Moille | Village | 670 | |
| Dalzell | Village | 639 | LaSalle County |
| Buda | Village | 465 | |
| Ohio | Village | 457 | |
| Cherry | Village | 417 | |
| Neponset | Village | 403 | |
| Seatonville | Village | 311 | |
| Malden | Village | 308 | |
| Manlius | Village | 289 | |
| Bureau Junction | Village | 279 | |
| Mineral | Village | 199 | |
| Arlington | Village | 163 | |
| Dover | Village | 135 | |
| New Bedford | Village | 75 | |
| Hollowayville | Village | 45 | |
| Peru | City | 3 | LaSalle County |
| Annawan | Town | 0 | Henry County |
ZIP codes in Bureau County
31 ZIP codes reach into Bureau County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 61283 also Whiteside and Henry counties
- 61312
- 61314
- 61315
- 61317
- 61320
- 61322
- 61323
- 61328
- 61329
- 61330 also Lee County
- 61337
- 61338
- 61342 also LaSalle and Lee counties
- 61344 also Henry County
- 61345 also Stark County
- 61346
- 61349 also Lee County
- 61354 also LaSalle County
- 61356
- 61359
- 61361 also Henry County
- 61362
- 61368
- 61374
- 61376 also Lee County
- 61379
- 61421 also Stark and Marshall counties
- 61443 also Henry and Stark counties
- 61537 also Marshall County
- 61560 also Putnam and Marshall counties
Population of Bureau County, 2020–2025
Bureau County shrank by 759 people (−2.3%) between April 2020 and July 2025: 672 more deaths than births and a net loss of 81 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 33,215 |
| 2021 | 32,986 |
| 2022 | 32,855 |
| 2023 | 32,748 |
| 2024 | 32,519 |
| 2025 | 32,510 |
Neighboring counties
- Putnam County southeast · 5,619 people
- Henry County west · 48,095 people
- Lee County northeast · 32,914 people
- LaSalle County east · 107,773 people
- Stark County southwest · 5,319 people
- Whiteside County northwest · 54,121 people
- Marshall County south · 11,473 people
Printable Bureau County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (118 KB)
- PNG (2400 px) (80 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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