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Zip Code 51546 — Logan, IA

ZIP Code 51546 is associated with Logan, IA, in Harrison County. The listed population estimate is 3,114; estimated density is 9.9 people per square mile. Among records with population estimates, it ranks #2 of 10 in Harrison County and #195 of 969 in IA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.639900, -95.772090)

Data MetricLocal Statistic
Postal / Zip Code51546
Primary CityLogan
State / ProvinceIA
CountyHarrison
Total Population3,114
Population Density9.9 people/sq mi
TimezoneAmerica/Chicago

How 51546 Compares

MetricZIP 51546Harrison County recordsIA records
Population estimate3,11414,759 (sum)3,210,984 (sum)
Population Density9.9 /sq mi----
County population rank#2 of 10----
State population rank#195 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 51550Magnolia6.4 mi169
ZIP 51579Woodbine8.4 mi2,282
ZIP 51555Missouri Valley9.2 mi4,952
ZIP 51563Persia10.2 mi629
ZIP 51565Portsmouth12.8 mi516

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 →