23 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Princeton | 1 | 7,620 | 7,819 | -0.52% | 925 | 8.24 | City |
| Spring Valley | 2 | 5,362 | 5,562 | -0.74% | 723 | 7.41 | City |
| De Pue | 3 | 1,563 | 1,625 | -0.76% | 639 | 2.45 | Village |
| Ladd | 4 | 1,493 | 1,260 | 3.25% | 1,236 | 1.21 | Village |
| Walnut | 5 | 1,259 | 1,309 | -0.79% | 1,576 | 0.80 | Village |
| Wyanet | 6 | 857 | 886 | -0.69% | 906 | 0.95 | Village |
| Sheffield | 7 | 793 | 820 | -0.63% | 681 | 1.17 | Village |
| Tiskilwa | 8 | 717 | 744 | -0.69% | 1,576 | 0.46 | Village |
| La Moille | 9 | 664 | 688 | -0.75% | 640 | 1.04 | Village |
| Dalzell | 10 | 638 | 663 | -0.78% | 778 | 0.82 | Village |
| Buda | 11 | 464 | 478 | -0.64% | 458 | 1.01 | Village |
| Ohio | 12 | 455 | 469 | -0.66% | 713 | 0.64 | Village |
| Cherry | 13 | 423 | 438 | -0.7% | 798 | 0.53 | Village |
| Neponset | 14 | 408 | 423 | -0.73% | 407 | 1 | Village |
| Seatonville | 15 | 314 | 323 | -0.63% | 544 | 0.58 | Village |
| Malden | 16 | 307 | 317 | -0.65% | 1,125 | 0.27 | Village |
| Manlius | 17 | 288 | 300 | -0.69% | 903 | 0.32 | Village |
| Bureau Junction | 18 | 278 | 287 | -0.71% | 173 | 1.61 | Village |
| Mineral | 19 | 199 | 206 | -0.5% | 587 | 0.34 | Village |
| Arlington | 20 | 166 | 171 | -0.6% | 420 | 0.40 | Village |
| Dover | 21 | 133 | 137 | -0.75% | 489 | 0.27 | Village |
| New Bedford | 22 | 74 | 76 | 0% | 477 | 0.15 | Village |
| Hollowayville | 23 | 37 | 39 | 0% | 755 | 0.05 | Village |
Princeton is the largest city in Bureau County, with a population of 7,620.
Hollowayville is the smallest city in Bureau County.
There are 23 cities in Bureau County, Illinois.