21 ZIP Code Tabulation Areas in Marshall County, Iowa. The population-weighted median household income is about $75,547, the median home value about $152,675, and 76.5% of occupied homes are owner-occupied.
- 21
- ZIP codes
- 48.9K
- Population
- 53
- Data points
Marshall County at a glance
- $75,547
- Median household income
- $152,675
- Median home value
- 39.8
- Median age
- 76.5%
- Owner-occupied
- 20,963
- Housing units
Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.
Top 5 Marshall County ZIP codes by median household income| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 50239 | St. Anthony | 354 | 93.3% | $151,250 |
| 2 | 50120 | Haverhill | 428 | 98.7% | $142,662 |
| 3 | 50106 | Gilman | 1,163 | 92.2% | $101,193 |
| 4 | 50247 | State Center | 2,004 | 84.1% | $91,875 |
| 5 | 50609 | Beaman | 377 | 89.1% | $90,250 |
Top 5 Marshall County ZIP codes by population| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 50158 | Green Mountain | 31,396 | 71.6% | $70,367 |
| 2 | 50247 | State Center | 2,004 | 84.1% | $91,875 |
| 3 | 50028 | Baxter | 1,981 | 82.3% | $72,022 |
| 4 | 50621 | Conrad | 1,601 | 78.2% | $88,077 |
| 5 | 50635 | Gladbrook | 1,423 | 80.2% | $81,125 |
Top 5 Marshall County ZIP codes by Homeowner GDP| # | ZIP | City | Population | Homeowner % | Median HH $ | Homeowner GDP |
|---|
| 1 | 50158 | Green Mountain | 31,396 | 71.6% | $70,367 | $594.1M |
| 2 | 50247 | State Center | 2,004 | 84.1% | $91,875 | $65.3M |
| 3 | 50621 | Conrad | 1,601 | 78.2% | $88,077 | $45.2M |
| 4 | 50106 | Gilman | 1,163 | 92.2% | $101,193 | $44.1M |
| 5 | 50028 | Baxter | 1,981 | 82.3% | $72,022 | $43.8M |
Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.
Densest: 50142 (Le Grand) at 1,040 people/sq mi. Least dense: 50206 (New Providence) at 8 people/sq mi.
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