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St. Marys, IA Demographics & ZIP Codes
St. Marys, Iowa demographics and median household income by ZIP code (in Warren County) — 1 ZIP codes — population 112 — median income $78,750 — avg. home value $168,800. Compare income, housing, and population across ZIP codes on US5.
Population
112
Median household income (avg.)
$78,750
105% of U.S. median
Average home value
$168,800
48% of U.S. median
Average rent
$1,107
95% of U.S. median
Median age (avg.)
53.5
St. Marys demographics
St. Marys, Iowa covers 1 ZIP code primarily in Warren County, with a combined ZIP-area population of about 112.
Across ZIP codes with age data, the average median age is about 53.5 years.
Median household income in St. Marys
The average median household income across ZIP codes in St. Marys, Iowa is about $78,750 — about 6% above the IA ZIP average ($74,194), and about 5% above the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $78,750 in 50241.
Housing in St. Marys
For housing in St. Marys, Iowa, the average median home value is about $168,800 and the average median rent is about $1,107.
The most populous ZIP in this set is 50241 (about 112 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in St. Marys
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 50241 | St. Marys | Warren County | IA | 112 | $78,750 | $168,800 |
Frequently asked questions
What are the demographics of St. Marys?
St. Marys, Iowa has a combined ZIP-area population of about 112 across 1 ZIP codes (primarily Warren County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in St. Marys?
The average median household income across ZIP codes in St. Marys, Iowa is about $78,750, about 6% above the state ZIP average ($74,194), and about 5% above the U.S. median ($75,149). Average median home value is about $168,800.
How many ZIP codes are in St. Marys?
St. Marys, 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 St. Marys?
This page lists ZIP codes in St. Marys, Iowa with population, median household income, and home value. Select a ZIP for a full demographics profile.