County ZIP codes · Ohio · FIPS 39139
Richland County, OH ZIP Codes
Richland County, Ohio has 20 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 19 residential and 1 for PO boxes or a single organization. 12 of the residential ones lie mainly in Richland County and 7 mainly in a neighboring county; 14 cross the county line. Median household income ranges from $31,343 in 44902 (Mansfield) to $90,366 in 44843 (Lucas) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Richland County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $57,955 and $68,299.
They carry 13 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 19 residential ZIP codes in Richland County
12 ZIP codes lie mainly in Richland County; 7 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 44903 | Mansfield | 25,642 | 225 | $67k | $181k | 95% |
| 44906 | Mansfield | 17,343 | 890 | $53k | $140k | 100% |
| 44907 | Mansfield | 16,349 | 2,100 | $48k | $145k | 100% |
| 44905 | Mansfield | 16,245 | 1,266 | $58k | $117k | 100% |
| 44875 | Shelby | 14,144 | 174 | $61k | $162k | 93% |
| 44904 | Mansfield | 13,450 | 259 | $62k | $212k | 62% |
| 44813 | Bellville | 8,994 | 132 | $78k | $225k | 86% |
| 44902 | Mansfield | 4,636 | 2,368 | $31k | $62k | 100% |
| 44822 | Butler | 3,995 | 88 | $72k | $246k | 59% |
| 44878 | Shiloh | 2,712 | 47 | $75k | $180k | 90% |
| 44843 | Lucas | 2,445 | 89 | $90k | $209k | 97% |
| 44901 | Mansfield | no residents | 0 | – | – | 100% |
Partly in Richland County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 44865 | Plymouth | 3,287 | 86 | $77k | $147k | 44% |
| 44864 | Perrysville | 3,336 | 56 | $66k | $161k | 25% |
| 44827 | Crestline | 6,993 | 144 | $57k | $126k | 22% |
| 44837 | Greenwich | 4,738 | 71 | $67k | $168k | 17% |
| 44833 | Galion | 15,892 | 176 | $60k | $146k | 8% |
| 44805 | Ashland | 30,805 | 204 | $68k | $174k | 5% |
| 43019 | Fredericktown | 9,445 | 86 | $68k | $207k | 3% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
14 ZIP codes of Richland County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Richland | Elsewhere |
|---|---|---|
| 44805 | 5% | Ashland County 95% |
| 44903 | 95% | Morrow County 4%; Ashland County 1% |
| 44833 | 8% | Morrow County 44%; Crawford County 42%; Marion County 6% |
| 44875 | 93% | Crawford County 7% |
| 44904 | 62% | Morrow County 38% |
| 43019 | 3% | Knox County 69%; Morrow County 29% |
| 44813 | 86% | Morrow County 9%; Knox County 5% |
| 44827 | 22% | Crawford County 78% |
| 44837 | 17% | Huron County 65%; Ashland County 19% |
| 44822 | 59% | Knox County 41% |
| 44864 | 25% | Ashland County 75% |
| 44865 | 44% | Huron County 46%; Crawford County 10% |
| 44878 | 90% | Huron County 6%; Ashland County 4% |
| 44843 | 97% | Ashland County 3% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 44862 | Ontario |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Richland County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Richland County's ZIP codes use 3 prefixes: 430, 448 and 449.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 430 | Columbus, OH (SCF 430) | 1 | 70 |
| 448 | Cleveland, OH (SCF 440) | 12 | 63 |
| 449 | Cleveland, OH (SCF 440) | 7 | 7 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.