Richland County, Illinois ZIP codes
6 ZIP codes are in Richland County, plus 3 that cross in from neighboring counties.
- ZIP codes
- 6
- Population in these ZIPs
- 15,733
- Avg. median income
- $62,600population-weighted
- Cities & towns
- 6
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ZIP codes in Richland County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 62419 | Calhoun | 352 | $95,982 | $105,500 |
| 62421 | Claremont | 366 | $55,833 | $186,400 |
| 62425 | Dundas | 838 | $54,400 | $162,400 |
| 62450 | Olney | 12,327 | $62,096 | $138,600 |
| 62452 | Parkersburg | 387 | $78,036 | $124,500 |
| 62868 | Noble | 1,463 | $61,645 | $134,000 |
ZIP codes partly in Richland County
These ZIP codes are mostly in a neighboring county but cover part of Richland County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 62448 | Newton | Jasper County | 5,356 | $74,179 | $162,300 |
| 62466 | Sumner | Lawrence County | 4,001 | $78,250 | $98,700 |
| 62476 | West Salem | Edwards County | 1,222 | $65,543 | $132,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Richland County
Nearby counties
Frequently asked questions
How many ZIP codes are in Richland County, Illinois?
6 ZIP codes are mainly in Richland County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in Richland County?
ZIP codes in Richland County use the city names Calhoun, Claremont, Dundas, Noble, Olney and Parkersburg.