ZIP codes
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Spencer, IA Demographics & ZIP Codes
Spencer, Iowa demographics and median household income by ZIP code (in Clay County) — 1 ZIP codes — population 12,402 — median income $61,175 — avg. home value $180,400. Compare income, housing, and population across ZIP codes on US5.
Population
12,402
Median household income (avg.)
$61,175
81% of U.S. median
Average home value
$180,400
52% of U.S. median
Average rent
$667
57% of U.S. median
Median age (avg.)
41.5
Spencer demographics
Spencer, Iowa covers 1 ZIP code primarily in Clay County, with a combined ZIP-area population of about 12,402.
Across ZIP codes with age data, the average median age is about 41.5 years.
Median household income in Spencer
The average median household income across ZIP codes in Spencer, Iowa is about $61,175 — about 18% below the IA ZIP average ($74,194), and about 19% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $61,175 in 51301.
Housing in Spencer
For housing in Spencer, Iowa, the average median home value is about $180,400 and the average median rent is about $667.
The most populous ZIP in this set is 51301 (about 12,402 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Spencer
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 51301 | Spencer | Clay County | IA | 12,402 | $61,175 | $180,400 |
Frequently asked questions
What are the demographics of Spencer?
Spencer, Iowa has a combined ZIP-area population of about 12,402 across 1 ZIP codes (primarily Clay County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Spencer?
The average median household income across ZIP codes in Spencer, Iowa is about $61,175, about 18% below the state ZIP average ($74,194), and about 19% below the U.S. median ($75,149). Average median home value is about $180,400.
How many ZIP codes are in Spencer?
Spencer, 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 Spencer?
This page lists ZIP codes in Spencer, Iowa with population, median household income, and home value. Select a ZIP for a full demographics profile.