Zip Code 46733 — Decatur, IN

ZIP Code 46733 is associated with Decatur, IN, in Adams County. The listed population estimate is 19,318; estimated density is 43.3 people per square mile. Among records with population estimates, it ranks #1 of 4 in Adams County and #134 of 788 in IN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.830330, -84.940230)

Data MetricLocal Statistic
Postal / Zip Code46733
Primary CityDecatur
State / ProvinceIN
CountyAdams
Total Population19,318
Population Density43.3 people/sq mi
TimezoneAmerica/Indiana/Indianapolis

How 46733 Compares

MetricZIP 46733Adams County recordsIN records
Population estimate19,31835,445 (sum)6,851,073 (sum)
Population Density43.3 /sq mi----
County population rank#1 of 4----
State population rank#134 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 46772Monroe7.6 mi3,288
ZIP 46731Craigville8.8 mi657
ZIP 46745Hoagland9.1 mi1,793
ZIP 46773Monroeville11.1 mi3,474
ZIP 46777Ossian11.5 mi6,081

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 →