County ZIP codes · Iowa · FIPS 19111
Lee County, IA ZIP Codes
Lee County, Iowa has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 1 for PO boxes or a single organization. 12 of the residential ones lie mainly in Lee County and 1 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $56,401 in 52627 (Fort Madison) to $68,625 in 52639 (Montrose) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Lee 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 $56,401 and $59,342.
They carry 13 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 13 residential ZIP codes in Lee County
12 ZIP codes lie mainly in Lee County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 52627 | Fort Madison | 12,677 | 199 | $56k | $117k | 100% |
| 52632 | Keokuk | 11,711 | 226 | $57k | $119k | 100% |
| 52625 | Donnellson | 2,338 | 22 | $80k | $205k | 100% |
| 52656 | West Point | 1,833 | 19 | $84k | $190k | 99% |
| 52639 | Montrose | 1,745 | 45 | $69k | $164k | 100% |
| 52626 | Farmington | 1,103 | 13 | $59k | $106k | 55% |
| 52658 | Wever | 927 | 20 | $108k | $253k | 98% |
| 52624 | Denmark | 734 | 794 | $110k | $191k | 100% |
| 52619 | Argyle | 441 | 12 | $73k | $99k | 100% |
| 52630 | Hillsboro | 235 | 6 | $56k | $69k | 39% |
| 52631 | Houghton | 65 | 322 | $107k | $256k | 100% |
| 52657 | Saint Paul | 65 | 171 | $73k | $141k | 100% |
Partly in Lee County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 52649 | Salem | 913 | 22 | $91k | $245k | 25% |
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?
5 ZIP codes of Lee County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Lee | Elsewhere |
|---|---|---|
| 52656 | 99% | Henry County 1% |
| 52626 | 55% | Van Buren County 24%; Clark County 22% |
| 52658 | 98% | Des Moines County 2% |
| 52649 | 25% | Henry County 75% |
| 52630 | 39% | Van Buren County 33%; Henry County 28% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 52648 | Pilot Grove |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Lee County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Lee County starts with 526.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 526 | Quad Cities, IL (SCF 612) | 14 | 36 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.