Chatham Illinois ZIP Codes
Chatham holds a single ZIP code.
Every ZIP code in Chatham
| ZIP code | County |
|---|---|
| 62629 | Sangamon County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Chatham codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Chatham. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Chatham ZIP code begins 626. Those first three digits identify the sectional center facility that processes mail for this part of Illinois. Statewide that range covers 62 ZIP codes, so Chatham accounts for 2% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Chatham
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Chatham occupies.
Chatham Illinois area codes in full →
Where Chatham's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Chatham
| City | Distance | ZIP codes |
|---|---|---|
| Auburn Illinois ZIP codes | 7.3 mi | 1 ZIP code |
| Divernon Illinois ZIP codes | 7.5 mi | 1 ZIP code |
| Pawnee Illinois ZIP codes | 8.0 mi | 1 ZIP code |
| Loami Illinois ZIP codes | 8.2 mi | 1 ZIP code |
| Springfield Illinois ZIP codes | 8.5 mi | 35 ZIP codes |
| Thayer Illinois ZIP codes | 9.9 mi | 1 ZIP code |
| Rochester Illinois ZIP codes | 10 mi | 1 ZIP code |
| New Berlin Illinois ZIP codes | 12 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.