Zip Code 46203 — Indianapolis, IN

ZIP Code 46203 is associated with Indianapolis, IN, in Marion County. The listed population estimate is 37,758; estimated density is 1,045.9 people per square mile. Among records with population estimates, it ranks #8 of 36 in Marion County and #39 of 788 in IN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.736800, -86.095860)

Data MetricLocal Statistic
Postal / Zip Code46203
Primary CityIndianapolis
State / ProvinceIN
CountyMarion
Total Population37,758
Population Density1,045.9 people/sq mi
TimezoneAmerica/Indiana/Indianapolis

How 46203 Compares

MetricZIP 46203Marion County recordsIN records
Population estimate37,758979,381 (sum)6,851,073 (sum)
Population Density1,045.9 /sq mi----
County population rank#8 of 36----
State population rank#39 of 788----

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 IN

ZIP CodeCityDistancePopulation estimate
ZIP 46107Beech Grove1.4 mi13,020
ZIP 46201Indianapolis2.6 mi30,335
ZIP 46225Indianapolis3.6 mi6,037
ZIP 46206Indianapolis3.8 miN/A
ZIP 46204Indianapolis4.0 mi11,400

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 →