Merrill, IA · standard
ZIP Code 51038
Plymouth County, Iowa — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,535
- 7/sq mi
- $95,893
- Median income
- $183,100
- Median home value
- 17.6%
- Bachelor's or higher
The verdict
Merrill pairs an upper-quartile household income with below-median home values, in a rural, homeowner-dominated area.
- Top 22%
- household income, US ZIPs
- 39th pct
- home value, US ZIPs
- 7
- people per sq mi
- 88%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51038 against every reporting US ZIP.
ZIP code 51038 is classified by USPS as a standard delivery area and covers roughly 232.6 square miles in Merrill, Plymouth County, Iowa. The area is home to 1,535 residents, producing a population density of 7 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 51038 against Iowa and the nation.
On the economic side, the median household income for ZIP 51038 sits at $95,893 (25% above the Iowa average), while per-capita income is $37,652. The poverty rate stands at 4.4% and the unemployment rate at 1.1%. On housing, the median home value is $183,100 (4% above the state average) with median rent at $630 per month, and 87.9% of occupied units are owner-occupied, a direct signal of whether 51038 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 17.6% of adults hold a bachelor's degree or higher, the median age is 43, and the average commute is 20 minutes. We also surface 4 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Plymouth County, so you can benchmark 51038 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 51038
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 51038.
- Transportation and warehousing
Transportation and warehousing
8 establishments
- Retail trade
Retail trade
5 establishments
- Construction 3
Construction
3 establishments
- Manufacturing 3
Manufacturing
3 establishments
- Other services (except public administration) 3
Other services (except public administration)
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 51038, Merrill, IA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
1,535
Population
232.6
Area (sq mi)
7
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51038?
43.0
Median Age
55.8%
Male
44.2%
Female
1.7%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$95,893
Median Household Income
+25% vs state
$37,652
Per Capita Income
4.4%
Poverty Rate
1.1%
Unemployment Rate
19.9 min
Mean Commute Time
How ZIP 51038 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$95,893 Top 22% higher than 78% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
653
Total Housing Units
553
Occupied Units
100
Vacant Units
2.62
Avg Household Size
Occupancy Type
$183,100
Median Home Value
+4% vs state
$630
Median Rent
1954
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 27 business establishments in ZIP 51038, employing approximately 191 people with a combined annual payroll of $10,607,000.
27
Businesses
191
Employees
$10.6M
Annual Payroll
5
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Transportation and warehousing | 8 | 29.6% |
| Retail trade | 5 | 18.5% |
| Construction | 3 | 11.1% |
| Manufacturing | 3 | 11.1% |
| Other services (except public administration) | 3 | 11.1% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 51038 vs 51024 →
ZIP 51038 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51031
Le Mars (51031)
12,336 residents
- 51108
Sioux City (51108)
5,566 residents
- 51024 2,070
Hinton (51024)
2,070 residents
- 51038 1,535
Merrill (51038)
1,535 residents
- 51008 151
Brunsville (51008)
151 residents
What this shows Among its immediate neighbors, ZIP 51038 ranks #4 by population — useful context the national average alone can't give.
ZIP 51038 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51024
Hinton (51024)
$114,219 median income
- 51038
Merrill (51038)
$95,893 median income
- 51108
Sioux City (51108)
$81,205 median income
- 51031
Le Mars (51031)
$76,525 median income
- 51008 $45,000
Brunsville (51008)
$45,000 median income
What this shows By household income, ZIP 51038 ranks #2 of 5 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
More ZIP Codes in Plymouth County
Related Areas
Frequently Asked Questions
What county is ZIP code 51038 in? ▼
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What is the median household income in ZIP 51038? ▼
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How many businesses are in ZIP code 51038? ▼
What are the main industries in ZIP code 51038? ▼
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What percentage of residents own vs. rent in ZIP 51038? ▼
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ZIP Code Research Guides
Official Data Resources for Merrill, IA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.