51234 ZIP Code — Boyden, IA
Sioux County, Iowa
ZIP code 51234 is located in Boyden, Iowa, within Sioux County. It covers approximately 49.80 square miles and serves a population of 1,179 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.
About ZIP code 51234
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $185,600. Owner-occupancy is high at 89%, well above the national average.
Median household income is $87,083.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 15 minutes is near the national average.
Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.
1,179
population
49.80
sq mi land
Standard
ZIP type
Central (CT)
timezone
51234 ZIP code map
Cities in ZIP code 51234
Below are the cities the US Postal Service accepts for ZIP code 51234. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Boyden | Preferred |
Nearby ZIP codes
51239 Hull (6.5 mi)
51201 Sheldon (8 mi)
51238 Hospers (10 mi)
51237 George (11.1 mi)
51041 Orange City (11.4 mi)
51235 Doon (13.1 mi)
51250 Sioux Center (13.4 mi)
51232 Ashton (14 mi)
51003 Alton (14.1 mi)
51231 Archer (15.2 mi)
51022 Granville (16.7 mi)
51247 Rock Valley (16.8 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 1,179 |
| Population density | 24 / sq mi |
| State FIPS | 19 |
| County FIPS | 167 |
| Geography | |
|---|---|
| Land area | 49.80 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 43.1861 |
| Longitude | -96.0202 |
| Timezone | Central (CT) |
| Area code | 712 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 33.1% | 30.7% | 40.1% |
| $50k – $100k | 37.1% | 42.1% | 33.4% |
| $100k – $200k | 25.5% | 22.2% | 21.5% |
| Over $200k | 4.4% | 5.0% | 5.0% |
Demographics & statistics
1,179
Population
24
People per sq mi
36.4
Median age
$87,083
Median household income
$38,216
Per capita income
$185,600
Median home value
$775
Median monthly rent
89.4%
Home ownership
9.4%
Poverty rate
0.0%
Unemployment
364
Housing units
25.9%
Bachelor's or higher
Age distribution
Male
Female
42
Under 5
35
60
5–9
51
47
10–14
40
40
15–19
34
56
20–24
48
67
25–34
56
85
35–44
72
84
45–54
71
50
55–59
43
27
60–64
22
47
65–74
39
28
75–84
23
7
85+
5
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 326 | 27.7% |
| 18 and over | 853 | 72.3% |
| 65 and over | 149 | 12.6% |
| Median age | 36.4 years | |
Race & ethnicity
White
93.5%
Hispanic or Latino
2.2%
Other race
2.2%
Asian
1%
Black or African American
0.7%
Two or more races
0.4%
| Group | Count | % |
|---|---|---|
| White | 1,127 | 93.5% |
| Hispanic or Latino | 26 | 2.2% |
| Other race | 26 | 2.2% |
| Asian | 12 | 1% |
| Black or African American | 9 | 0.7% |
| Two or more races | 5 | 0.4% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 33.1% | 30.7% | 40.1% |
| $50k – $100k | 37.1% | 42.1% | 33.4% |
| $100k – $200k | 25.5% | 22.2% | 21.5% |
| Over $200k | 4.4% | 5.0% | 5.0% |
Under $10k
4.7%
$10k–$15k
2.0%
$15k–$25k
2.0%
$25k–$35k
4.7%
$35k–$50k
11.3%
$50k–$75k
13.0%
$75k–$100k
19.4%
$100k–$150k
27.3%
$150k–$200k
5.9%
$200k+
9.8%
| Range | % of households |
|---|---|
| Under $10k | 4.7% |
| $10k–$15k | 2.0% |
| $15k–$25k | 2.0% |
| $25k–$35k | 4.7% |
| $35k–$50k | 11.3% |
| $50k–$75k | 13.0% |
| $75k–$100k | 19.4% |
| $100k–$150k | 27.3% |
| $150k–$200k | 5.9% |
| $200k+ | 9.8% |
| Median income | $87,083 |
Housing
Home values
Under $50k
0.3%
$50k–$100k
14.0%
$100k–$150k
16.5%
$150k–$200k
26.4%
$200k–$300k
17.6%
$300k–$500k
20.6%
$500k–$1M
4.4%
$1M+
0.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $185,600 |
| Median rent / month | $775 |
| Owner occupied | 89.4% |
| Renter occupied | 10.6% |
| Vacant | 0.0% |
| Single-family detached | 94.3% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 7.0 |
| Avg household size (owned) | 2.81 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 5.7% |
| 2000–2009 | 10.8% |
| 1990–1999 | 3.4% |
| 1980–1989 | 0.7% |
| 1970–1979 | 21.9% |
| 1960–1969 | 13.3% |
| 1950–1959 | 11.3% |
| 1940–1949 | 5.7% |
| 1939 or earlier | 27.3% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.5% |
| 1 bedroom | 5.2% |
| 2 bedrooms | 16.5% |
| 3 bedrooms | 44.5% |
| 4 bedrooms | 19.7% |
| 5+ bedrooms | 13.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 5.9% |
| 1 vehicle | 17.9% |
| 2 vehicles | 38.3% |
| 3 or more | 37.8% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 45.2% |
| Electricity | 39.3% |
| Propane / LP gas | 8.4% |
| Fuel oil | 5.7% |
| No fuel used | 0.7% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 282 | 69.3% |
| Cohabiting couple | 13 | 3.2% |
| Male householder, no spouse | 37 | 9.1% |
| Female householder, no spouse | 75 | 18.4% |
| Households with children under 18 | 148 | 36.4% |
| Households with seniors (65+) | 112 | 27.5% |
| Average household size | 2.89 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 30.9% | 20.9% |
| Married | 63.5% | 68.7% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.8% | 7.1% |
| Divorced | 4.8% | 3.3% |
Education
Less than 9th grade
0.4%
Some HS, no diploma
2.5%
HS graduate
35.7%
Some college, no degree
23.0%
Associate's degree
12.5%
Bachelor's degree
18.0%
Graduate / professional
7.9%
| Metric | % |
|---|---|
| HS diploma or higher | 97.1% |
| Bachelor's or higher | 25.9% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 31 | 8.6% |
| Kindergarten | 31 | 8.6% |
| Elementary school | 158 | 43.9% |
| High school | 58 | 16.1% |
| College / grad school | 82 | 22.8% |
Employment
Industry of employment
Manufacturing
22.0%
Education & healthcare
21.6%
Retail trade
13.2%
Professional & management
7.4%
Agriculture & mining
7.2%
Finance & real estate
6.1%
Arts, food & hospitality
5.5%
Wholesale trade
4.8%
Construction
4.2%
Other services
2.6%
Transportation & utilities
2.3%
Information
1.9%
Public administration
1.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 39.7% |
| Service | 9.1% |
| Sales & office | 26.2% |
| Natural resources & construction | 8.5% |
| Production & transportation | 16.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 80.2% |
| Government | 13.0% |
| Self-employed | 6.4% |
| Unpaid family workers | 0.4% |
Commute
| Method | % |
|---|---|
| Drive alone | 82.1% |
| Carpool | 10.8% |
| Public transit | 0.0% |
| Walk | 1.9% |
| Work from home | 4.5% |
| Other means | 0.7% |
| Avg commute (minutes) | 14.6 |
Poverty
All people
9.4%
Under 18 years
14.8%
18 and over
7.4%
Married-couple families
3.5%
Female-led households
47.1%
Income support
| Source | % of households |
|---|---|
| Social Security | 21.9% |
| Retirement income | 6.1% |
| Supplemental Security | 2.0% |
| Cash public assistance | 2.0% |
| Food stamps / SNAP | 3.9% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 35.6% |
| High blood pressure | 31.2% |
| High cholesterol | 31.8% |
| Diabetes | 8.7% |
| Heart disease | 5.7% |
| Stroke | 2.6% |
| Asthma | 8.8% |
| Arthritis | 22.8% |
| Kidney disease | 2.5% |
| Pulmonary disease | 5.7% |
| Cancer | 6.7% |
| Behavior / access | % |
|---|---|
| Smoking | 15.9% |
| Binge drinking | 21.1% |
| No physical activity | 22.5% |
| Less than 7 hrs sleep | 28.7% |
| Depression | 16.2% |
| Fair or poor health | 10.7% |
| Poor mental health | 12.8% |
| Poor physical health | 8.4% |
| No health insurance | 9.6% |
| Visited doctor (checkup) | 74.4% |
| Visited dentist | 70.7% |
| Cholesterol screening | 88.5% |
| Teeth loss | 12.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 41 | 4.8% |
| Disability | % |
|---|---|
| Any disability | 5.3% |
| Under 18 | 2.1% |
| 18–64 years | 2.6% |
| 65 and over | 25.5% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 82.2% |
| Public insurance | 22.1% |
| No insurance | 4.2% |
| Uninsured under 19 | 6.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 1,102 | 93.5% |
| Spanish | 26 | 2.4% |
| Other Indo-European | 14 | 1.3% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 12 | 1.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 1,165 | 98.8% |
| Born in same state | 1,165 | 98.8% |
| Born in different state | 892 | 75.7% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 14 | 1.2% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| English | 588 | 49.9% |
| French | 97 | 8.2% |
| Italian | 30 | 2.5% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 29 | 2.5% |
| Polish | 24 | 2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 34.5% |
| Internet access | 97.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 51234
What city is ZIP code 51234 in?
ZIP code 51234 is primarily assigned to Boyden, Iowa.
What county is ZIP code 51234 in?
ZIP code 51234 falls within Sioux County, Iowa.
Is ZIP code 51234 mostly owner-occupied?
89% of occupied units in ZIP code 51234 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 51234?
The median home value in ZIP code 51234 is $185,600.
What is the population of ZIP code 51234?
ZIP code 51234 has an estimated population of 1,179 residents, with a density of 24 people per square mile.
What is the median household income in ZIP code 51234?
The median household income in ZIP code 51234 is $87,083, above the national median of ~$75,000.
What timezone is ZIP code 51234 in?
ZIP code 51234 observes the CST timezone.