Zip Code 46278 — Indianapolis, IN

ZIP Code 46278 is associated with Indianapolis, IN, in Marion County. The listed population estimate is 8,450; estimated density is 246.9 people per square mile. Among records with population estimates, it ranks #33 of 36 in Marion County and #238 of 788 in IN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.893890, -86.296060)

Data MetricLocal Statistic
Postal / Zip Code46278
Primary CityIndianapolis
State / ProvinceIN
CountyMarion
Total Population8,450
Population Density246.9 people/sq mi
TimezoneAmerica/Indiana/Indianapolis

How 46278 Compares

MetricZIP 46278Marion County recordsIN records
Population estimate8,450979,381 (sum)6,851,073 (sum)
Population Density246.9 /sq mi----
County population rank#33 of 36----
State population rank#238 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 46268Indianapolis3.4 mi25,913
ZIP 46254Indianapolis3.5 mi40,674
ZIP 46112Brownsburg5.0 mi44,220
ZIP 46228Indianapolis6.0 mi15,724
ZIP 46234Indianapolis6.0 mi28,300

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 →