Washington County, IA ZIP Codes
11 ZIP codes cover all or part of Washington County, Iowa. The Census Bureau counts 22,561 residents in the county, with a median household income of $75,647 and a median home value of $203,900. Median household income ranges from $55,000 in 52540 to $93,750 in 52201. Its largest communities include Washington, Wellman, Keota, Riverside and Ainsworth.
Washington County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 22,561 |
| Households | 8,972 |
| Median household income | $75,647 |
| Median home value | $203,900 |
| Median age | 40.7 |
| Median rent | $879 |
All 11 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 29,160 |
| Households (sum of ZIP codes) | 11,303 |
| Median household income, range across ZIP codes | $55,000 (52540) to $93,750 (52201) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $74,248 |
| Homeowners | 75.2% |
| Households with kids under 18 | 30.6% |
| Moved in the past year | 10.0% |
| Carrier routes in EDDM2GO's route library | 10 routes, 2,625 homes (4 of 11 ZIP codes) |
Top facts
- Highest median household income in Washington County: 52201 ($93,750)
- Most residents: 52353 (9,241 people)
- Highest homeownership: 52248 (89.8% own their home)
- Most households with kids: 52327 (37.0% of households)
- Most new movers: 52353 (13.7% moved in last year)
- Youngest median age: 52247 (34.8 years)
- Highest median home value: 52247 ($298,900)
Every ZIP code in Washington County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 52353 | Washington | 9,241 | 3,860 | $63,047 | $160,500 | 67.7% | 27.5% | 13.7% | — | — | 100% of its land |
| 52247 | Kalona | 5,914 | 2,115 | $91,450 | $298,900 | 71.7% | 36.2% | 9.1% | — | — | 45% of its land |
| 52327 | Riverside | 3,796 | 1,315 | $86,942 | $298,800 | 80.9% | 37.0% | 5.8% | — | — | 73% of its land |
| 52356 | Wellman | 2,664 | 1,076 | $57,321 | $227,800 | 80.0% | 32.3% | 9.2% | 3 | 970 | 74% of its land |
| 52654 | Wayland | 1,884 | 644 | $84,783 | $149,700 | 81.8% | 28.1% | 9.0% | 2 | 618 | 30% of its land |
| 52248 | Keota | 1,675 | 734 | $77,174 | $157,000 | 89.8% | 20.0% | 6.9% | 3 | 636 | 52% of its land |
| 52201 | Ainsworth | 1,148 | 437 | $93,750 | $181,600 | 83.3% | 23.1% | 10.4% | — | — | 100% of its land |
| 52540 | Brighton | 1,088 | 472 | $55,000 | $115,300 | 77.5% | 25.0% | 11.2% | 2 | 486 | 47% of its land |
| 52585 | Richland | 838 | 323 | $75,809 | $142,000 | 77.7% | 37.8% | 6.8% | — | — | 11% of its land |
| 52621 | Crawfordsville | 604 | 219 | $87,188 | $98,200 | 81.3% | 38.4% | 8.3% | — | — | 85% of its land |
| 52359 | West Chester | 308 | 108 | $67,727 | — | 93.5% | 37.0% | 0.0% | — | — | 100% of its land |
A ZIP code is listed for Washington County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Washington — 7,290 residents · 1 ZIP code
- Wellman — 1,454 residents · 1 ZIP code
- Keota — 891 residents · 1 ZIP code
- Riverside — 890 residents · 1 ZIP code
- Ainsworth — 633 residents · 1 ZIP code
- Crawfordsville — 312 residents · 1 ZIP code
- West Chester — 178 residents · 1 ZIP code
- Kinross — 171 residents · 2 ZIP codes
Rankings
- Richest ZIP codes in Washington County — 8 ZIP codes ranked
- ZIP codes with the highest home values in Washington County — 8 ZIP codes ranked
- ZIP codes with the highest homeownership in Washington County — 8 ZIP codes ranked
- ZIP codes with the most families with kids in Washington County — 8 ZIP codes ranked
- ZIP codes with the most new movers in Washington County — 8 ZIP codes ranked
- Youngest ZIP codes in Washington County — 8 ZIP codes ranked
- Oldest ZIP codes in Washington County — 8 ZIP codes ranked
- Fastest-growing ZIP codes in Washington County — 8 ZIP codes ranked
Price a mailing to Washington County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Washington County, IA?
- 52353, 52247, 52327, 52356, 52654, 52248, 52201, 52540, 52585, 52621 and 52359. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Washington County?
- 22,561 residents in 8,972 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Washington County?
- $75,647 for the county as a whole. Its ZIP codes range from $55,000 (52540) to $93,750 (52201).
- Which Washington County ZIP code has the highest median household income?
- 52201, at $93,750, among ZIP codes with at least 1,000 residents. See the full ranking of Washington County ZIP codes by income.
- How many carrier routes and mailboxes are in Washington County?
- For the 4 of 11 ZIP codes in EDDM2GO's stored route library: 10 carrier routes reaching 2,625 residential and 84 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.