51054 ZIP Code — Sergeant Bluff, IA
Woodbury County, Iowa
ZIP code 51054 is located in Sergeant Bluff, Iowa, within Woodbury County. It covers approximately 38.68 square miles and serves a population of 5,416 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.
About ZIP code 51054
The housing stock consists of a mix of housing types. Much of the housing stock is relatively new, reflecting recent development activity. Median home value is $267,600. Owner-occupancy sits near the national average at 75%.
Median household income is $116,111.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 14 minutes is near the national average.
Educational attainment is near the national average, with 38% of residents holding a bachelor's degree or higher.
5,416
population
38.68
sq mi land
Standard
ZIP type
Central (CT)
timezone
51054 ZIP code map
Cities in ZIP code 51054
Below are the cities the US Postal Service accepts for ZIP code 51054. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Sergeant Bluff | Acceptable |
| Sergeant Bluff | Preferred |
Nearby ZIP codes
51111 Sioux City (3.9 mi)
51052 Salix (5.2 mi)
51106 Sioux City (5.7 mi)
68030 Homer (7.2 mi)
68731 Dakota City (7.6 mi)
51007 Bronson (8.3 mi)
51101 Sioux City (8.6 mi)
51105 Sioux City (9.6 mi)
68776 South Sioux City (9.6 mi)
51103 Sioux City (11.4 mi)
51104 Sioux City (11.5 mi)
51030 Lawton (11.7 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 5,416 |
| Population density | 140 / sq mi |
| State FIPS | 19 |
| County FIPS | 193 |
| Geography | |
|---|---|
| Land area | 38.68 sq mi |
| Water area | 0.79 sq mi |
| Latitude | 42.3780 |
| Longitude | -96.3301 |
| 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 | 23.0% | 40.6% | 40.1% |
| $50k – $100k | 35.9% | 33.9% | 33.4% |
| $100k – $200k | 34.2% | 21.3% | 21.5% |
| Over $200k | 6.9% | 4.2% | 5.0% |
Demographics & statistics
5,416
Population
140
People per sq mi
35.8
Median age
$116,111
Median household income
$46,504
Per capita income
$267,600
Median home value
$1,155
Median monthly rent
74.7%
Home ownership
7.8%
Poverty rate
3.9%
Unemployment
1,513
Housing units
37.8%
Bachelor's or higher
Age distribution
Male
Female
231
Under 5
227
226
5–9
222
256
10–14
251
157
15–19
153
116
20–24
114
331
25–34
323
386
35–44
377
424
45–54
415
116
55–59
114
156
60–64
152
193
65–74
188
106
75–84
103
40
85+
39
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,588 | 29.3% |
| 18 and over | 3,828 | 70.7% |
| 65 and over | 669 | 12.4% |
| Median age | 35.8 years | |
Race & ethnicity
White
88.5%
Two or more races
4.3%
Asian
4%
Hispanic or Latino
2.2%
Other race
0.5%
American Indian / Alaska Native
0.4%
Black or African American
0.1%
| Group | Count | % |
|---|---|---|
| White | 4,903 | 88.5% |
| Two or more races | 239 | 4.3% |
| Asian | 219 | 4% |
| Hispanic or Latino | 123 | 2.2% |
| Other race | 27 | 0.5% |
| American Indian / Alaska Native | 21 | 0.4% |
| Black or African American | 7 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 23.0% | 40.6% | 40.1% |
| $50k – $100k | 35.9% | 33.9% | 33.4% |
| $100k – $200k | 34.2% | 21.3% | 21.5% |
| Over $200k | 6.9% | 4.2% | 5.0% |
Under $10k
4.8%
$10k–$15k
0.8%
$15k–$25k
6.5%
$25k–$35k
5.7%
$35k–$50k
2.1%
$50k–$75k
5.7%
$75k–$100k
13.8%
$100k–$150k
28.8%
$150k–$200k
18.5%
$200k+
13.3%
| Range | % of households |
|---|---|
| Under $10k | 4.8% |
| $10k–$15k | 0.8% |
| $15k–$25k | 6.5% |
| $25k–$35k | 5.7% |
| $35k–$50k | 2.1% |
| $50k–$75k | 5.7% |
| $75k–$100k | 13.8% |
| $100k–$150k | 28.8% |
| $150k–$200k | 18.5% |
| $200k+ | 13.3% |
| Median income | $116,111 |
Housing
Home values
Under $50k
6.1%
$50k–$100k
2.4%
$100k–$150k
6.5%
$150k–$200k
11.5%
$200k–$300k
32.0%
$300k–$500k
39.0%
$500k–$1M
2.5%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $267,600 |
| Median rent / month | $1,155 |
| Owner occupied | 74.7% |
| Renter occupied | 25.3% |
| Vacant | 5.3% |
| Single-family detached | 63.9% |
| Large apartment buildings | 5.8% |
| Mobile homes | 7.0% |
| Median rooms | 6.5 |
| Avg household size (owned) | 2.84 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 26.6% |
| 2000–2009 | 17.4% |
| 1990–1999 | 14.3% |
| 1980–1989 | 7.9% |
| 1970–1979 | 7.3% |
| 1960–1969 | 8.8% |
| 1950–1959 | 10.2% |
| 1940–1949 | 2.4% |
| 1939 or earlier | 5.1% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 2.8% |
| 1 bedroom | 5.6% |
| 2 bedrooms | 15.5% |
| 3 bedrooms | 42.7% |
| 4 bedrooms | 21.3% |
| 5+ bedrooms | 12.1% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 1.1% |
| 1 vehicle | 26.2% |
| 2 vehicles | 42.7% |
| 3 or more | 30.1% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 67.7% |
| Electricity | 29.1% |
| Propane / LP gas | 2.7% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,206 | 63.9% |
| Cohabiting couple | 122 | 6.5% |
| Male householder, no spouse | 225 | 11.9% |
| Female householder, no spouse | 333 | 17.7% |
| Households with children under 18 | 834 | 44.2% |
| Households with seniors (65+) | 457 | 24.2% |
| Average household size | 2.86 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 28.3% | 20.3% |
| Married | 64.7% | 62.1% |
| Separated | 0.5% | 0.2% |
| Widowed | 0.7% | 7.3% |
| Divorced | 5.8% | 10.1% |
Education
Less than 9th grade
1.1%
Some HS, no diploma
1.7%
HS graduate
26.7%
Some college, no degree
20.8%
Associate's degree
11.9%
Bachelor's degree
24.5%
Graduate / professional
13.3%
| Metric | % |
|---|---|
| HS diploma or higher | 97.2% |
| Bachelor's or higher | 37.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 147 | 10.1% |
| Kindergarten | 60 | 4.1% |
| Elementary school | 856 | 58.6% |
| High school | 194 | 13.3% |
| College / grad school | 204 | 14.0% |
Employment
Industry of employment
Manufacturing
22.8%
Education & healthcare
19.1%
Retail trade
12.0%
Professional & management
8.2%
Finance & real estate
7.8%
Arts, food & hospitality
6.8%
Construction
5.6%
Public administration
5.4%
Wholesale trade
3.5%
Transportation & utilities
3.3%
Other services
2.0%
Agriculture & mining
1.8%
Information
1.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 43.5% |
| Service | 11.8% |
| Sales & office | 18.3% |
| Natural resources & construction | 8.5% |
| Production & transportation | 17.9% |
Employment type
| Type | % |
|---|---|
| Private sector | 83.7% |
| Government | 13.2% |
| Self-employed | 3.2% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 85.3% |
| Carpool | 8.9% |
| Public transit | 0.0% |
| Walk | 0.1% |
| Work from home | 5.7% |
| Other means | 0.1% |
| Avg commute (minutes) | 13.9 |
Poverty
All people
7.8%
Under 18 years
11.9%
18 and over
6.1%
Married-couple families
1.9%
Female-led households
36.7%
Income support
| Source | % of households |
|---|---|
| Social Security | 25.8% |
| Retirement income | 31.2% |
| Supplemental Security | 6.0% |
| Cash public assistance | 1.0% |
| Food stamps / SNAP | 6.9% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 34.8% |
| High blood pressure | 27.9% |
| High cholesterol | 33.8% |
| Diabetes | 8.5% |
| Heart disease | 4.7% |
| Stroke | 2.1% |
| Asthma | 8.7% |
| Arthritis | 20.2% |
| Kidney disease | 2.2% |
| Pulmonary disease | 4.8% |
| Cancer | 6.0% |
| Behavior / access | % |
|---|---|
| Smoking | 14.5% |
| Binge drinking | 22.8% |
| No physical activity | 20.5% |
| Less than 7 hrs sleep | 31.0% |
| Depression | 16.9% |
| Fair or poor health | 9.2% |
| Poor mental health | 12.8% |
| Poor physical health | 7.6% |
| No health insurance | 7.8% |
| Visited doctor (checkup) | 75.8% |
| Visited dentist | 74.9% |
| Cholesterol screening | 89.6% |
| Teeth loss | 9.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 199 | 5.2% |
| Disability | % |
|---|---|
| Any disability | 12.0% |
| Under 18 | 10.5% |
| 18–64 years | 8.9% |
| 65 and over | 30.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 80.9% |
| Public insurance | 29.6% |
| No insurance | 3.7% |
| Uninsured under 19 | 0.9% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 4,958 | 91.5% |
| Spanish | 170 | 3.4% |
| Other Indo-European | 34 | 0.7% |
| Asian & Pacific Islander | 130 | 2.6% |
| Other languages | 6 | 0.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 5,150 | 95.1% |
| Born in same state | 5,150 | 95.1% |
| Born in different state | 4,080 | 75.3% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 266 | 4.9% |
| Not a US citizen | 85 | 32.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 405 | 7.5% |
| Italian | 402 | 7.4% |
| Arab | 314 | 5.8% |
| Polish | 241 | 4.4% |
| Ancestry | Count | % |
|---|---|---|
| English | 237 | 4.4% |
| Dutch | 63 | 1.2% |
| Norwegian | 28 | 0.5% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 34.8% |
| Internet access | 98.6% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 51054
What city is ZIP code 51054 in?
ZIP code 51054 is primarily assigned to Sergeant Bluff, Iowa.
What county is ZIP code 51054 in?
ZIP code 51054 falls within Woodbury County, Iowa.
What is the median household income in ZIP code 51054?
The median household income in ZIP code 51054 is $116,111, above the national median of ~$75,000.
What is the population of ZIP code 51054?
ZIP code 51054 has an estimated population of 5,416 residents, with a density of 140 people per square mile.
What is the typical home value in ZIP code 51054?
The median home value in ZIP code 51054 is $267,600.
What timezone is ZIP code 51054 in?
ZIP code 51054 observes the CST timezone.