Zip Code 52309 — Monmouth, IA

ZIP Code 52309 is associated with Monmouth, IA, in Jackson County. The listed population estimate is 443; estimated density is 5.0 people per square mile. Among records with population estimates, it ranks #8 of 13 in Jackson County and #703 of 969 in IA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.124150, -90.887330)

Data MetricLocal Statistic
Postal / Zip Code52309
Primary CityMonmouth
State / ProvinceIA
CountyJackson
Total Population443
Population Density5.0 people/sq mi
TimezoneAmerica/Chicago

How 52309 Compares

MetricZIP 52309Jackson County recordsIA records
Population estimate44320,118 (sum)3,210,984 (sum)
Population Density5.0 /sq mi----
County population rank#8 of 13----
State population rank#703 of 969----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in IA

ZIP CodeCityDistancePopulation estimate
ZIP 52207Baldwin3.6 mi256
ZIP 52321Onslow5.1 mi395
ZIP 52362Wyoming7.4 mi816
ZIP 52323Oxford Junction10.2 mi942
ZIP 52212Center Junction10.4 mi601

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →