ZIP codes
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Martinsburg, IA Demographics & ZIP Codes
Martinsburg, Iowa demographics and median household income by ZIP code (in Keokuk County) — 1 ZIP codes — population 73 — median income $40,000. Compare income, housing, and population across ZIP codes on US5.
Population
73
Median household income (avg.)
$40,000
53% of U.S. median
Average home value
—
Median age (avg.)
46.9
Martinsburg demographics
Martinsburg, Iowa covers 1 ZIP code primarily in Keokuk County, with a combined ZIP-area population of about 73.
Across ZIP codes with age data, the average median age is about 46.9 years.
Median household income in Martinsburg
The average median household income across ZIP codes in Martinsburg, Iowa is about $40,000 — about 46% below the IA ZIP average ($74,194), and about 47% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $40,000 in 52568.
Housing in Martinsburg
The most populous ZIP in this set is 52568 (about 73 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Martinsburg
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 52568 | Martinsburg | Keokuk County | IA | 73 | $40,000 | — |
Frequently asked questions
What are the demographics of Martinsburg?
Martinsburg, Iowa has a combined ZIP-area population of about 73 across 1 ZIP codes (primarily Keokuk County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Martinsburg?
The average median household income across ZIP codes in Martinsburg, Iowa is about $40,000, about 46% below the state ZIP average ($74,194), and about 47% below the U.S. median ($75,149).
How many ZIP codes are in Martinsburg?
Martinsburg, Iowa includes 1 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Martinsburg?
This page lists ZIP codes in Martinsburg, Iowa with population, median household income, and home value. Select a ZIP for a full demographics profile.