Zip Code 52302 — Marion, IA

ZIP Code 52302 is associated with Marion, IA, in Linn County. The listed population estimate is 42,706; estimated density is 221.8 people per square mile. Among records with population estimates, it ranks #3 of 22 in Linn County and #6 of 969 in IA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.065600, -91.570910)

Data MetricLocal Statistic
Postal / Zip Code52302
Primary CityMarion
State / ProvinceIA
CountyLinn
Total Population42,706
Population Density221.8 people/sq mi
TimezoneAmerica/Chicago

How 52302 Compares

MetricZIP 52302Linn County recordsIA records
Population estimate42,706228,503 (sum)3,210,984 (sum)
Population Density221.8 /sq mi----
County population rank#3 of 22----
State population rank#6 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 52328Robins4.9 mi2,712
ZIP 52402Cedar Rapids5.4 mi42,938
ZIP 52233Hiawatha6.1 mi7,000
ZIP 52336Springville6.7 mi2,397
ZIP 52403Cedar Rapids6.7 mi22,551

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 →