| Official Name: | Buffalo Prairie, Illinois |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Illinois#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Rock Island |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 9.74 |
| Area Land Km2: | 9.74 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 3.76 |
| Area Land Sq Mi: | 3.76 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 64 |
| Population Density Km2: | 6.57 |
| Population Density Sq Mi: | 17.02 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 755 |
| Coordinates: | 41.3383°N -90.855°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 61237 |
| Area Code: | 309 |
| Blank Name: | FIPS code |
| Blank Info: | 17-09499 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 405163[2] |
Buffalo Prairie is a Census-designated place in Rock Island County, Illinois, United States. Buffalo Prairie is 10miles west of Reynolds. Buffalo Prairie has a post office with ZIP code 61237.[3]
Buffalo Prairie had a population of 64 as of the 2020 United States Census.