Boyden, IA · standard
ZIP Code 51234
Sioux County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,268
- 10/sq mi Low-density area
- $84,318
- Median income Above-median income area
- $211,800
- Median home value Near-median home value
- 28.0%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Boyden pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 33%
- household income, US ZIPs
- 47th pct
- home value, US ZIPs
- 10
- people per sq mi
- 91%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51234 against every reporting US ZIP.
ZIP code 51234 is a sparsely populated ZIP (a standard USPS delivery area) in Boyden, Sioux County, Iowa, home to just 1,268 residents across 129.4 square miles, a density of 10 people per square mile, in the Chicago time zone.
ZIP 51234 lands in the middle-income range, with a median household income of $84,318 (10% above the average Iowa ZIP), while per-capita income is $34,801. The poverty rate is 9.8%, with unemployment at 0.3%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $211,800 (21% above the average Iowa ZIP), while 90.5% of occupied homes are owner-occupied and median rent is $762.
Educational attainment sits below the national norm: 28.0% of adults hold a bachelor's degree or higher, the median age is 32.3, and the average commute is -. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Sioux County, so 51234 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 51234
Top 5 sectors by establishment count in Boyden, IA
Which industries have the most business establishments in ZIP 51234.
- Construction
Construction
4 establishments
- Manufacturing
Manufacturing
4 establishments
- Other services (except public administration)
Other services (except public administration)
4 establishments
- Transportation and warehousing
Transportation and warehousing
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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 51234, Boyden, 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
1,268
Population
129.4
Area (sq mi)
10
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51234?
32.3
Median Age
56.4%
Male
43.6%
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?
$84,318
Median Household Income
+10% vs state ZIP avg
$34,801
Per Capita Income
9.8%
Poverty Rate
0.3%
Unemployment Rate
How ZIP 51234 ranks among Iowa ZIPs
Boyden, 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)
$84,318 Top 29% higher than 71% 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
414housing units
414
Total Housing Units
412
Occupied Units
2
Vacant Units
2.84
Avg Household Size
Occupancy Type
$211,800
Median Home Value
+21% vs state ZIP avg
$762
Median Rent
1964
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 22 business establishments in ZIP 51234, employing approximately 529 people with a combined annual payroll of $30,276,000.
22
Businesses
529
Employees
$30.3M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 4 | 18.2% |
| Manufacturing | 4 | 18.2% |
| Other services (except public administration) | 4 | 18.2% |
| Transportation and warehousing | 3 | 13.6% |
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 51234 vs 51239 →
ZIP 51234 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51239
Hull (51239)
3,123 residents
- 51237
George (51237)
1,703 residents
- 51234
Boyden (51234)
1,268 residents
- 51238 1,184
Hospers (51238)
1,184 residents
- 51244 79
Matlock (51244)
79 residents
What this shows Among its immediate neighbors, ZIP 51234 ranks #3 by population - useful context the national average alone can't give.
ZIP 51234 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51234
Boyden (51234)
$84,318 median income
- 51244
Matlock (51244)
$83,365 median income
- 51239
Hull (51239)
$77,540 median income
- 51238
Hospers (51238)
$74,000 median income
- 51237
George (51237)
$61,667 median income
What this shows By household income, ZIP 51234 ranks the highest 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 51234, 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 (1,268 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 51234 in?
ZIP code 51234 (Boyden) 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 51234?
ZIP code 51234 in Boyden, IA has a population of 1,268 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51234?
The median household income in ZIP 51234 is $84,318, which is 11% above the national average of $76,288.
What is the average home value in ZIP 51234?
The median home value in ZIP 51234 is $211,800, which is 24% below the national average of $278,155.
What is the demographic makeup of ZIP 51234?
The largest racial group in ZIP 51234 is White at 95.3%. Hispanic or Latino residents make up 8.4% of the population.
How many businesses are in ZIP code 51234?
ZIP code 51234 has 22 business establishments employing approximately 529 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51234?
The top industries by establishment count in ZIP 51234 are: Construction (4), Manufacturing (4), Other services (except public administration) (4). There are 4 industry sectors represented in total.
What is the education level in ZIP code 51234?
In ZIP code 51234, 67.9% of residents aged 25+ have a high school diploma or higher, and 28.0% 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 51234?
In ZIP code 51234, approximately 90.5% of occupied housing units are owner-occupied and 9.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51234?
The poverty rate in ZIP code 51234 is 9.8% 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 51234's numbers, next.
- See how ZIP 51234 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Boyden, 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.