County · GEOID 17147
Piatt County, IL ZIP codes
16 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Piatt County (GEOID 17147). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 36,433 (16 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
Piatt County, IL ZIP code map

ZIP/ZCTA overlap with Piatt County
Population overlap
Share of each ZIP/ZCTA’s population located within Piatt County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- 61813100.0%
Directory county
- 6181895.6%
Directory county
- 6183087.3%
Directory county
- 61839100.0%
Directory county
- 618424.4%
- 618513.3%
- 618530.3%
- 6185499.4%
Directory county
- 61855100.0%
Directory county
- 61856100.0%
Directory county
- 618754.2%
- 618820.5%
- 6188498.4%
Directory county
- 6191347.2%
- 6192998.8%
Directory county
- 61936100.0%
Directory county
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Piatt County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 61813 | Bement | Piatt County | 1,813 | $82,750 |
| 61818 | Cerro Gordo | Piatt County | 1,608 | $75,536 |
| 61830 | Cisco | Piatt County | 502 | $66,750 |
| 61839 | De Land | Piatt County | 648 | $63,393 |
| 61842 | Farmer City | De Witt County | 2,577 | $79,167 |
| 61851 | Ivesdale | Champaign County | 295 | $58,981 |
| 61853 | Mahomet | Champaign County | 14,645 | $114,974 |
| 61854 | Mansfield | Piatt County | 1,356 | $84,338 |
| 61855 | Milmine | Piatt County | 84 | $29,375 |
| 61856 | Monticello | Piatt County | 8,110 | $94,841 |
| 61875 | Seymour | Champaign County | 974 | $119,632 |
| 61882 | Weldon | De Witt County | 714 | $77,000 |
| 61884 | White Heath | Piatt County | 1,072 | $101,250 |
| 61913 | Atwood | Douglas County | 1,192 | $60,208 |
| 61929 | Hammond | Piatt County | 713 | $59,792 |
| 61936 | La Place | Piatt County | 130 | $67,125 |