County · GEOID 17135
Montgomery County, IL ZIP codes
28 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Montgomery County (GEOID 17135). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 57,030 (28 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
Montgomery County, IL ZIP code map

ZIP/ZCTA overlap with Montgomery County
Population overlap
Share of each ZIP/ZCTA’s population located within Montgomery County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- 62015100.0%
Directory county
- 6201798.5%
Directory county
- 6201960.5%
Directory county
- 6203299.7%
Directory county
- 62049100.0%
Directory county
- 62051100.0%
Directory county
- 6205696.5%
Directory county
- 620690.2%
- 620740.5%
- 6207596.0%
Directory county
- 62076100.0%
Directory county
- 6207758.7%
Directory county
- 620801.7%
- 6208329.1%
- 620866.4%
- 62089100.0%
Directory county
- 62091100.0%
Directory county
- 62094100.0%
Directory county
- 62533100.0%
Directory county
- 6253870.8%
Directory county
- 625465.3%
- 6255316.0%
- 625570.6%
- 625581.1%
- 6256097.1%
Directory county
- 6257262.5%
Directory county
- 626400.7%
- 626901.2%
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