Decatur, Illinois ZIP Codes

ZIP records
4
Sum of listed ZIP population estimates
79,040
Counties represented
1
Population range
707–32,665 per ZIP

Population sum includes positive estimates in these ZIP records; it is not an official city population.

Top ZIP Codes by Population

Rank	ZIP Code	City	County	Population estimate
1	62521	Decatur	Macon	32,665
2	62526	Decatur	Macon	30,483
3	62522	Decatur	Macon	15,185
4	62523	Decatur	Macon	707

Counties represented

Macon County

All ZIP Codes in Decatur

ZIP 62521 — Macon County
ZIP 62522 — Macon County
ZIP 62523 — Macon County
ZIP 62526 — Macon County

Browse all ZIP data for Illinois

Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.