44 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Princeton | 1 | 8,872 | 9,221 | -0.77% | 243 | 37 | Township |
| Hall | 2 | 8,033 | 8,273 | -0.94% | 216 | 37 | Township |
| Princeton | 3 | 7,577 | 7,846 | -0.59% | 920 | 8 | City |
| Manlius | 4 | 6,076 | 6,143 | -0.07% | 255 | 24 | Township |
| Spring Valley | 5 | 5,318 | 5,576 | -0.8% | 717 | 7 | City |
| Selby | 6 | 2,059 | 2,155 | -0.87% | 57 | 36 | Township |
| De Pue | 7 | 1,548 | 1,622 | -0.77% | 633 | 2 | Village |
| Walnut | 8 | 1,516 | 1,596 | -0.98% | 41 | 37 | Township |
| Ladd | 9 | 1,449 | 1,262 | 2.19% | 1,200 | 1 | Village |
| Walnut | 10 | 1,244 | 1,307 | -0.8% | 1,557 | 1 | Village |
| Wyanet | 11 | 1,184 | 1,235 | -0.75% | 33 | 36 | Township |
| La Moille | 12 | 970 | 1,014 | -0.82% | 26 | 38 | Township |
| Wyanet | 13 | 846 | 882 | -0.7% | 894 | 1 | Village |
| Ohio | 14 | 793 | 827 | -0.75% | 21 | 38 | Township |
| Sheffield | 15 | 787 | 820 | -0.63% | 676 | 1 | Village |
| Arispie | 16 | 716 | 750 | -0.83% | 20 | 36 | Township |
| Tiskilwa | 17 | 700 | 741 | -0.99% | 1,538 | 0 | Village |
| La Moille | 18 | 660 | 689 | -0.75% | 636 | 1 | Village |
| Berlin | 19 | 646 | 673 | -0.77% | 18 | 37 | Township |
| Dalzell | 20 | 633 | 663 | -0.78% | 772 | 1 | Village |
| Neponset | 21 | 624 | 658 | -1.11% | 17 | 36 | Township |
| Indiantown | 22 | 570 | 602 | -1.04% | 16 | 36 | Township |
| Manlius | 23 | 545 | 572 | -0.91% | 15 | 36 | Township |
| Dover | 24 | 480 | 500 | -0.83% | 13 | 37 | Township |
| Buda | 25 | 458 | 478 | -0.65% | 452 | 1 | Village |
| Ohio | 26 | 452 | 469 | -0.66% | 708 | 1 | Village |
| Mineral | 27 | 430 | 449 | -0.69% | 12 | 36 | Township |
| Cherry | 28 | 414 | 432 | -0.72% | 781 | 1 | Village |
| Neponset | 29 | 401 | 422 | -0.74% | 400 | 1 | Village |
| Clarion | 30 | 386 | 404 | -0.77% | 11 | 35 | Township |
| Leepertown | 31 | 313 | 328 | -0.95% | 20 | 16 | Township |
| Malden | 32 | 306 | 318 | -0.65% | 1,121 | 0 | Village |
| Seatonville | 33 | 306 | 323 | -0.97% | 530 | 1 | Village |
| Manlius | 34 | 286 | 298 | -0.69% | 897 | 0 | Village |
| Bureau Junction | 35 | 274 | 286 | -0.72% | 171 | 2 | Village |
| Bureau | 36 | 240 | 251 | -0.83% | 7 | 36 | Township |
| Mineral | 37 | 198 | 206 | -0.5% | 584 | 0 | Village |
| Milo | 38 | 186 | 193 | -0.53% | 5 | 35 | Township |
| Arlington | 39 | 163 | 169 | -0.61% | 413 | 0 | Village |
| Gold | 40 | 160 | 166 | -0.62% | 4 | 36 | Township |
| Dover | 41 | 131 | 136 | -0.76% | 482 | 0 | Village |
| Wheatland | 42 | 130 | 136 | -0.76% | 7 | 18 | Township |
| New Bedford | 43 | 74 | 77 | 0% | 477 | 0 | Village |
| Hollowayville | 44 | 43 | 45 | 0% | 878 | 0 | Village |
Princeton is the largest city in Bureau County, with a population of 8,872.
Hollowayville is the smallest city in Bureau County, with a population of 43.
There are 44 cities in Bureau County, Illinois.