Home > IA > Keokuk County > Martinsburg > Zip 52568

Zip Code 52568 — Martinsburg, IA

52568 is a ZIP Code associated with Martinsburg, IA, located within Keokuk. The postal region supports an estimated population of 80 residents across Data Pending housing units, with a population density of 117.9 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.177900, -92.250770)

Data MetricLocal Statistic
Postal / Zip Code52568
Primary CityMartinsburg
State / ProvinceIA
CountyKeokuk
Total Population80
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density117.9 people/sq mi
TimezoneAmerica/Chicago

How 52568 Compares

MetricZIP 52568Keokuk CountyIA State Average
Population809,1203,210,984
Median IncomeData PendingN/AN/A
Population Density117.9 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 52563Hedrick1.4 mi1,602N/A
Zip 52562Hayesville6.0 mi52N/A
Zip 52576Ollie7.6 mi371N/A
Zip 52580Packwood9.2 mi711N/A
Zip 52591Sigourney10.2 mi2,721N/A

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 →