Zip Code 50647 — Janesville, IA

ZIP Code 50647 is associated with Janesville, IA, in Bremer County. The listed population estimate is 1,978; estimated density is 25.1 people per square mile. Among records with population estimates, it ranks #5 of 8 in Bremer County and #283 of 969 in IA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.647870, -92.480260)

Data MetricLocal Statistic
Postal / Zip Code50647
Primary CityJanesville
State / ProvinceIA
CountyBremer
Total Population1,978
Population Density25.1 people/sq mi
TimezoneAmerica/Chicago

How 50647 Compares

MetricZIP 50647Bremer County recordsIA records
Population estimate1,97825,857 (sum)3,210,984 (sum)
Population Density25.1 /sq mi----
County population rank#5 of 8----
State population rank#283 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 50670Shell Rock7.3 mi2,270
ZIP 50622Denver7.7 mi3,549
ZIP 50613Cedar Falls7.9 mi43,867
ZIP 50677Waverly8.3 mi12,673
ZIP 50660New Hartford9.2 mi1,143

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 →