Zip Code 50623 — Dewar, IA

ZIP Code 50623 is associated with Dewar, IA, in Black Hawk County. The listed population estimate is 153; estimated density is 28.6 people per square mile. Among records with population estimates, it ranks #12 of 12 in Black Hawk County and #878 of 969 in IA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.526930, -92.209620)

Data MetricLocal Statistic
Postal / Zip Code50623
Primary CityDewar
State / ProvinceIA
CountyBlack Hawk
Total Population153
Population Density28.6 people/sq mi
TimezoneAmerica/Chicago

How 50623 Compares

MetricZIP 50623Black Hawk County recordsIA records
Population estimate153134,441 (sum)3,210,984 (sum)
Population Density28.6 /sq mi----
County population rank#12 of 12----
State population rank#878 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 50703Waterloo4.0 mi17,952
ZIP 50667Raymond4.0 mi899
ZIP 50626Dunkerton4.2 mi1,468
ZIP 50707Evansdale4.9 mi7,784
ZIP 50702Waterloo7.1 mi20,882

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 →