Home > IA > Pottawattamie County > Council Bluffs > Zip 51503

Zip Code 51503 — Council Bluffs, IA

ZIP Code 51503 is associated with Council Bluffs, IA, in Pottawattamie County. The listed population estimate is 37,972; estimated density is 120.5 people per square mile. Among records with population estimates, it ranks #1 of 16 in Pottawattamie County and #8 of 969 in IA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.230400, -95.777950)

Data MetricLocal Statistic
Postal / Zip Code51503
Primary CityCouncil Bluffs
State / ProvinceIA
CountyPottawattamie
Total Population37,972
Population Density120.5 people/sq mi
TimezoneAmerica/Chicago

How 51503 Compares

MetricZIP 51503Pottawattamie County recordsIA records
Population estimate37,97292,784 (sum)3,210,984 (sum)
Population Density120.5 /sq mi----
County population rank#1 of 16----
State population rank#8 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 51501Council Bluffs5.2 mi34,618
ZIP 51554Mineola7.7 mi194
ZIP 51510Carter Lake8.3 mi3,767
ZIP 51575Treynor9.2 mi1,609
ZIP 51548McClelland9.5 mi415

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 →