Okoboji, IA · standard
ZIP Code 51355
Dickinson County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 874
- 141/sq mi High-density area
- $72,262
- Median income Near-median income area
- $421,100
- Median home value Above-median home value
- 44.7%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Okoboji pairs an above-median household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 50%
- household income, US ZIPs
- Top 19%
- home value, US ZIPs
- 141
- people per sq mi
- 71%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51355 against every reporting US ZIP.
ZIP code 51355 is a sparsely populated ZIP (a standard USPS delivery area) in Okoboji, Dickinson County, Iowa, home to just 874 residents across 6.2 square miles, a density of 141 people per square mile, in the Chicago time zone.
ZIP 51355 lands in the middle-income range, with a median household income of $72,262 (6% below the average Iowa ZIP), while per-capita income is $62,450. The poverty rate is 11.0%, with unemployment at 1.6%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $421,100 (140% above the average Iowa ZIP), while 71.3% of occupied homes are owner-occupied and median rent is $942.
A solid share of residents have a four-year degree: 44.7% of adults hold a bachelor's degree or higher, the median age is 54.7, and the average commute is -. The page also surfaces 3 ZIP codes within roughly 10 miles and 6 more in Dickinson County, so 51355 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 51355
Top 5 sectors by establishment count in Okoboji, IA
Which industries have the most business establishments in ZIP 51355.
- Retail trade
Retail trade
12 establishments
- Accommodation and food services
Accommodation and food services
10 establishments
- Construction
Construction
8 establishments
- Arts, entertainment, and recreation
Arts, entertainment, and recreation
8 establishments
- Finance and insurance
Finance and insurance
6 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 51355, Okoboji, 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
874
Population
6.2
Area (sq mi)
141
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51355?
54.7
Median Age
47.7%
Male
52.3%
Female
0.5%
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?
$72,262
Median Household Income
-6% vs state ZIP avg
$62,450
Per Capita Income
11.0%
Poverty Rate
1.6%
Unemployment Rate
How ZIP 51355 ranks among Iowa ZIPs
Okoboji, 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)
$72,262 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
1,492housing units
1,492
Total Housing Units
614
Occupied Units
878
Vacant Units
1.67
Avg Household Size
Occupancy Type
$421,100
Median Home Value
+140% vs state ZIP avg
$942
Median Rent
1977
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 67 business establishments in ZIP 51355, employing approximately 501 people with a combined annual payroll of $26,787,000.
67
Businesses
501
Employees
$26.8M
Annual Payroll
9
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 12 | 17.9% |
| Accommodation and food services | 10 | 14.9% |
| Construction | 8 | 11.9% |
| Arts, entertainment, and recreation | 8 | 11.9% |
| Finance and insurance | 6 | 9.0% |
| Real estate and rental and leasing | 4 | 6.0% |
| Health care and social assistance | 4 | 6.0% |
| Professional, scientific, and technical services | 3 | 4.5% |
| Other services (except public administration) | 3 | 4.5% |
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 51355 vs 51331 →
ZIP 51355 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51360
Spirit Lake (51360)
8,031 residents
- 51351
Milford (51351)
4,365 residents
- 51331 1,140
Arnolds Park (51331)
1,140 residents
- 51355 874
Okoboji (51355)
874 residents
What this shows Among its immediate neighbors, ZIP 51355 ranks #4 by population - useful context the national average alone can't give.
ZIP 51355 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51331
Arnolds Park (51331)
$89,167 median income
- 51360
Spirit Lake (51360)
$75,882 median income
- 51351
Milford (51351)
$73,824 median income
- 51355
Okoboji (51355)
$72,262 median income
What this shows By household income, ZIP 51355 ranks #4 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 51355, both outside IA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Dickinson County
Related Areas
Frequently Asked Questions
What county is ZIP code 51355 in?
ZIP code 51355 (Okoboji) is located in Dickinson County, Iowa. Dickinson County contains multiple ZIP codes, see the full list at /counties/dickinson-ia.
What is the population of ZIP code 51355?
ZIP code 51355 in Okoboji, IA has a population of 874 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51355?
The median household income in ZIP 51355 is $72,262, which is 5% below the national average of $76,288.
What is the average home value in ZIP 51355?
The median home value in ZIP 51355 is $421,100, which is 51% above the national average of $278,155.
What is the demographic makeup of ZIP 51355?
The largest racial group in ZIP 51355 is White at 95.8%. Hispanic or Latino residents make up 3.1% of the population.
How many businesses are in ZIP code 51355?
ZIP code 51355 has 67 business establishments employing approximately 501 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51355?
The top industries by establishment count in ZIP 51355 are: Retail trade (12), Accommodation and food services (10), Construction (8). There are 9 industry sectors represented in total.
What is the education level in ZIP code 51355?
In ZIP code 51355, 67.6% of residents aged 25+ have a high school diploma or higher, and 44.7% 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 51355?
In ZIP code 51355, approximately 71.3% of occupied housing units are owner-occupied and 28.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51355?
The poverty rate in ZIP code 51355 is 11.0% 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 51355's numbers, next.
- See how ZIP 51355 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Okoboji, 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.