Hull, IA · standard
ZIP Code 51239
Sioux County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 3,123
- 18/sq mi Moderate-density area
- $77,540
- Median income Near-median income area
- $236,500
- Median home value Near-median home value
- 20.6%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Hull pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.
- Top 41%
- household income, US ZIPs
- Top 46%
- home value, US ZIPs
- 18
- people per sq mi
- 84%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51239 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 51239 (Hull, IA) rose +23.5% from 2023 to 2024. The all-transactions index moved from 231.4 in 2023 to 285.7 in 2024 (2000 = 100).
ZIP code 51239 covers 171.6 square miles in Hull, Sioux County, Iowa (a standard USPS delivery area), with a modest 3,123 residents on file, a density of 18 people per square mile, in the Chicago time zone.
ZIP 51239 lands in the middle-income range, with a median household income of $77,540 (1% above the average Iowa ZIP), while per-capita income is $38,148. Both reported hardship measures are comparatively low in absolute terms: poverty is 5.7% and unemployment is 1.9%. Housing is both higher-cost and owner-heavy: median home value is $236,500 (35% above the average Iowa ZIP), while 84.0% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 20.6% of adults hold a bachelor's degree or higher, the median age is 35.2, and the average commute is -. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Sioux County, so 51239 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 51239
Top 5 sectors by establishment count in Hull, IA
Which industries have the most business establishments in ZIP 51239.
- Construction
Construction
26 establishments
- Transportation and warehousing
Transportation and warehousing
24 establishments
- Other services (except public administration)
Other services (except public administration)
19 establishments
- Manufacturing
Manufacturing
13 establishments
- Wholesale trade
Wholesale trade
13 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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 51239, Hull, IA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
3,123
Population
171.6
Area (sq mi)
18
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51239?
35.2
Median Age
49.9%
Male
50.1%
Female
5.1%
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?
$77,540
Median Household Income
+1% vs state ZIP avg
$38,148
Per Capita Income
5.7%
Poverty Rate
1.9%
Unemployment Rate
How ZIP 51239 ranks among Iowa ZIPs
Hull, IA household income vs. every Iowa ZIP code
Median household income among 911 reporting Iowa ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$77,540 Top 41% higher than 59% of 911 Iowa ZIPs
Each bar is a $20K-wide band; taller bars hold more Iowa 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?
Housing stock: occupied vs vacant
1,085housing units
1,085
Total Housing Units
1,051
Occupied Units
34
Vacant Units
2.68
Avg Household Size
Occupancy Type
$236,500
Median Home Value
+35% vs state ZIP avg
1973
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+23.5%
YoY Change (2024)
286
HPI Index (2000 = 100)
+186%
Total Change Since 2000
Home values in ZIP 51239 have increased 23.5% over the past year (2024). Since 2000, this ZIP has seen +186% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +4.8% | 208 |
| 2021 | +7.7% | 224 |
| 2022 | +13.9% | 255 |
| 2023 | -9.2% | 231 |
| 2024 | +23.5% | 286 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 145 business establishments in ZIP 51239, employing approximately 1,250 people with a combined annual payroll of $63,912,000.
145
Businesses
1,250
Employees
$63.9M
Annual Payroll
13
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 26 | 17.9% |
| Transportation and warehousing | 24 | 16.6% |
| Other services (except public administration) | 19 | 13.1% |
| Manufacturing | 13 | 9.0% |
| Wholesale trade | 13 | 9.0% |
| Retail trade | 13 | 9.0% |
| Professional, scientific, and technical services | 6 | 4.1% |
| Accommodation and food services | 6 | 4.1% |
| Finance and insurance | 5 | 3.5% |
| Administrative and support and waste management and remediation services | 5 | 3.5% |
| Health care and social assistance | 5 | 3.5% |
| Educational services | 4 | 2.8% |
| Real estate and rental and leasing | 3 | 2.1% |
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 51239 vs 51234 →
ZIP 51239 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51250
Sioux Center (51250)
8,249 residents
- 51239 3,123
Hull (51239)
3,123 residents
- 51237 1,703
George (51237)
1,703 residents
- 51234 1,268
Boyden (51234)
1,268 residents
- 51235 1,079
Doon (51235)
1,079 residents
What this shows Among its immediate neighbors, ZIP 51239 ranks #2 by population - useful context the national average alone can't give.
ZIP 51239 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51250
Sioux Center (51250)
$94,119 median income
- 51234
Boyden (51234)
$84,318 median income
- 51239
Hull (51239)
$77,540 median income
- 51235
Doon (51235)
$71,016 median income
- 51237
George (51237)
$61,667 median income
What this shows By household income, ZIP 51239 ranks #3 of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 51239, both outside IA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (3,123 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Sioux County
Related Areas
Frequently Asked Questions
What county is ZIP code 51239 in?
ZIP code 51239 (Hull) is located in Sioux County, Iowa. Sioux County contains multiple ZIP codes, see the full list at /counties/sioux-ia.
What is the population of ZIP code 51239?
ZIP code 51239 in Hull, IA has a population of 3,123 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51239?
The median household income in ZIP 51239 is $77,540, which is 2% above the national average of $76,288.
What is the average home value in ZIP 51239?
The median home value in ZIP 51239 is $236,500, which is 15% below the national average of $278,155.
What is the demographic makeup of ZIP 51239?
The largest racial group in ZIP 51239 is White at 87.2%. Hispanic or Latino residents make up 11.6% of the population.
How many businesses are in ZIP code 51239?
ZIP code 51239 has 145 business establishments employing approximately 1,250 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51239?
The top industries by establishment count in ZIP 51239 are: Construction (26), Transportation and warehousing (24), Other services (except public administration) (19). There are 13 industry sectors represented in total.
How have home values changed in ZIP code 51239?
According to the FHFA House Price Index, home values in ZIP 51239 increased by 23.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 186%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 51239?
In ZIP code 51239, 51.9% of residents aged 25+ have a high school diploma or higher, and 20.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 51239?
In ZIP code 51239, approximately 84.0% of occupied housing units are owner-occupied and 16.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51239?
The poverty rate in ZIP code 51239 is 5.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 51239's numbers, next.
- See how ZIP 51239 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Hull, IA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.