Sloan, IA · standard
ZIP Code 51055
Woodbury County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,319
- 8/sq mi Low-density area
- $72,143
- Median income Near-median income area
- $218,300
- Median home value Near-median home value
- 27.9%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Sloan pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 50%
- household income, US ZIPs
- 49th pct
- home value, US ZIPs
- 8
- people per sq mi
- 70%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51055 against every reporting US ZIP.
ZIP code 51055 is a sparsely populated ZIP (a standard USPS delivery area) in Sloan, Woodbury County, Iowa, home to just 1,319 residents across 173.6 square miles, a density of 8 people per square mile, in the Chicago time zone.
ZIP 51055 lands in the middle-income range, with a median household income of $72,143 (6% below the average Iowa ZIP), while per-capita income is $47,894. The poverty rate is 14.6%, with unemployment at 6.2%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $218,300 (24% above the average Iowa ZIP), while 69.9% of occupied homes are owner-occupied and median rent is $781.
Educational attainment sits below the national norm: 27.9% of adults hold a bachelor's degree or higher, the median age is 44.9, and the average commute is 20 minutes. The page also surfaces 3 ZIP codes within roughly 10 miles and 6 more in Woodbury County, so 51055 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 51055
Top 5 sectors by establishment count in Sloan, IA
Which industries have the most business establishments in ZIP 51055.
- Accommodation and food services
Accommodation and food services
7 establishments
- Construction
Construction
5 establishments
- Retail trade
Retail trade
4 establishments
- Transportation and warehousing
Transportation and warehousing
4 establishments
- Other services (except public administration)
Other services (except public administration)
4 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 51055, Sloan, 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
1,319
Population
173.6
Area (sq mi)
8
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51055?
44.9
Median Age
46.2%
Male
53.8%
Female
1.4%
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?
$72,143
Median Household Income
-6% vs state ZIP avg
$47,894
Per Capita Income
14.6%
Poverty Rate
6.2%
Unemployment Rate
19.6 min
Mean Commute Time
How ZIP 51055 ranks among Iowa ZIPs
Sloan, 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)
$72,143 45th percentile higher than 45% 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
548housing units
548
Total Housing Units
548
Occupied Units
0
Vacant Units
2.46
Avg Household Size
Occupancy Type
$218,300
Median Home Value
+24% vs state ZIP avg
$781
Median Rent
1968
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 32 business establishments in ZIP 51055, employing approximately 404 people with a combined annual payroll of $13,682,000.
32
Businesses
404
Employees
$13.7M
Annual Payroll
6
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 7 | 21.9% |
| Construction | 5 | 15.6% |
| Retail trade | 4 | 12.5% |
| Transportation and warehousing | 4 | 12.5% |
| Other services (except public administration) | 4 | 12.5% |
| Finance and insurance | 3 | 9.4% |
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 51055 vs 51052 →
ZIP 51055 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 68039
Macy (68039)
1,421 residents
- 51055
Sloan (51055)
1,319 residents
- 51063
Whiting (51063)
1,100 residents
- 51052
Salix (51052)
1,027 residents
What this shows Among its immediate neighbors, ZIP 51055 ranks #2 by population - useful context the national average alone can't give.
ZIP 51055 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51052
Salix (51052)
$108,750 median income
- 51063
Whiting (51063)
$80,750 median income
- 51055
Sloan (51055)
$72,143 median income
- 68039
Macy (68039)
$46,313 median income
What this shows By household income, ZIP 51055 ranks #3 of 4 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 51055, 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 (1,319 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Woodbury County
Related Areas
Frequently Asked Questions
What county is ZIP code 51055 in?
ZIP code 51055 (Sloan) is located in Woodbury County, Iowa. Woodbury County contains multiple ZIP codes, see the full list at /counties/woodbury-ia.
What is the population of ZIP code 51055?
ZIP code 51055 in Sloan, IA has a population of 1,319 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51055?
The median household income in ZIP 51055 is $72,143, which is 5% below the national average of $76,288.
What is the average home value in ZIP 51055?
The median home value in ZIP 51055 is $218,300, which is 22% below the national average of $278,155.
What is the demographic makeup of ZIP 51055?
The largest racial group in ZIP 51055 is White at 92.8%. Hispanic or Latino residents make up 0.2% of the population.
How many businesses are in ZIP code 51055?
ZIP code 51055 has 32 business establishments employing approximately 404 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51055?
The top industries by establishment count in ZIP 51055 are: Accommodation and food services (7), Construction (5), Retail trade (4). There are 6 industry sectors represented in total.
What is the education level in ZIP code 51055?
In ZIP code 51055, 64.3% of residents aged 25+ have a high school diploma or higher, and 27.9% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 51055?
The mean commute time for workers in ZIP code 51055 is 19.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 51055?
In ZIP code 51055, approximately 69.9% of occupied housing units are owner-occupied and 30.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51055?
The poverty rate in ZIP code 51055 is 14.6% 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 51055's numbers, next.
- See how ZIP 51055 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Sloan, 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.