ZIP Codes of Monroe County, IA

Population & People
Population & People
Total Population
7,322
Household Income
Household Income
Median Income
$62,963
Housing
Housing
Total Housing Units
3,603
Business & Economy
Business & Economy
Total Businesses
169
Employment
Employment
Employment Rate
57.88%
Education
Education
Bachelor's Degree+
20.46%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:3 ZIP Codes (3 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:641
Timezone:Central (GMT -06:00)
Local Time:2:11:54 PM
Population:7,322 [See All]
FIPS:19135
Land Area:383 sq mi
Water Area:3 sq mi
Coordinates:41.0461, -92.9430
Quick Link:
https://www.zip-codes.com/county/ia-monroe.asp
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Iowa's #89 most populous county
7,322 residents across 3 ZIPs — #89 of 99 Iowa counties.

Standout ZIPs in this County


Most Populous
Albia · 6,036 people
82.4% of county total
Highest Income
Albia · $73,896 median
1.2× county average
Largest Land Area
Albia · 222.4 sq mi
Spans the most ground
Fastest Growth
Albia · -0.5% (10-yr)
6,067 → 6,036 residents
Most Educated
Albia · 23.2% bachelor's+
967 of 4,174 adults 25+

Things worth knowing about Monroe County


7,322 residents live across 3 ZIPs covering 383 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 7,710 to 7,322 from 2014 to 2024 — a -5.0% change. 0 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 52531 (Albia, $73,896 median) and poorest ZIP 52569 (Melrose, $51,477) are 11.3 miles apart — a 1.4× income gap across local geography.

Median home values vary 1.9× across this county — from $84,300 in 52569 (Melrose) to $162,100 in 52531 (Albia).

Density varies across the county — from 5 people/sq mi in 52569 (Melrose) to 27 in 52531 (Albia).

Educational attainment ranges from 7.9% bachelor's+ in 52569 (Melrose) to 23.2% in 52531 (Albia) — the breadth of educational profiles across the area.

Within Iowa, this is the #89 most populous of 99 counties and ranks #92 for median household income .

Weighted by population, the typical household earns about $71,169 across the county — reflecting what a typical resident sees, not a simple ZIP average.

20.5% of adults age 25+ hold a bachelor's degree or higher (1,057 of 5,167 reporting).

3 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Monroe County


Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Albia

Population decline

Monroe County lost 5.0% of residents between 2014 and 2024. ZIPs that shed the largest share:

Lovilia
-31.3%
1,071 → 736 residents

All ZIP Codes in Monroe County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
52531AlbiaStandard6,036$73,896222.4-0.5%
50150LoviliaStandard736$63,51657.9-31.3%
52569MelroseStandard550$51,477102.6-3.8%

Adjacent & Nearby Counties