| 2020 Census | 2010 Census | Change from 2010 to 2020 | % Change | |
| Genesee County | 58,388 | 60,079 | -1,691 | -2.8 |
| Alabama town | 1,602 | 1,869 | -267 | -14.3 |
| Alexander town | 2,491 | 2,534 | -43 | -1.7 |
| Alexander village | 518 | 509 | 9 | 1.8 |
| Batavia city | 15,600 | 15,465 | 135 | 0.9 |
| Batavia town | 6,293 | 6,809 | -516 | -7.6 |
| Bergen town | 3,120 | 3,120 | 0 | 0.0 |
| Bergen village | 1,208 | 1,176 | 32 | 2.7 |
| Bethany town | 1,780 | 1,765 | 15 | 0.8 |
| Byron town | 2,302 | 2,369 | -67 | -2.8 |
| Darien town | 3,010 | 3,158 | -148 | -4.7 |
| Elba town | 2,164 | 2,370 | -206 | -8.7 |
| Elba village | 558 | 676 | -118 | -17.5 |
| LeRoy town | 7,662 | 7,641 | 21 | 0.3 |
| LeRoy village | 4,300 | 4,391 | -91 | -2.1 |
| Oakfield town | 3,145 | 3,250 | -105 | -3.2 |
| Oakfield village | 1,812 | 1,813 | -1 | -0.1 |
| Pavilion town | 2,290 | 2,495 | -205 | -8.2 |
| Pembroke town | 4,264 | 4,292 | -28 | -0.7 |
| Corfu village | 689 | 709 | -20 | -2.8 |
| Stafford town | 2,424 | 2,459 | -35 | -1.4 |
| Tonawanda Reservation | 241 | 483 | -242 | -50.1 |
| Please Note: Town population numbers include the village population | ||||
For more detailed data from all Genesee County subdivisions (Towns, Villages, City of Batavia and Tonawanda Reservation) See the 2020 Demographic Profiles
More data on changes for NY State can be found at: https://pad.human.cornell.edu/census2020/index.cfm#pl
Genesee County Complete Count Committee
2020 Census
Final Activities Report
Genesee County Complete Count Chair:
Rochelle Stein
County Planning Department Staff Rep:
Felipe Oltramari