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Iowa ZIP Codes
Buena Vista County
Sioux Rapids, IA
50585
50585 ZIP Code — Sioux Rapids, IA
Buena Vista County, Iowa
ZIP code 50585 is located in
Sioux Rapids ,
Iowa ,
within Buena Vista County .
It covers approximately 66.78 square miles and serves a population of
1,207 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 712 .
About ZIP code 50585
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 $94,100. Owner-occupancy is high at 85%, well above the national average.
Median household income is $68,676. The poverty rate of 4% is below the national average. 39% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 24 minutes is near the national average.
College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 50585 reflects a community defined by high homeownership and a significant Social Security-dependent population.
50585 ZIP code map
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Cities in ZIP code 50585
Below are the cities the US Postal Service accepts for ZIP code 50585. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
1,207
Population density
18 / sq mi
State FIPS
19
County FIPS
021
Geography
Land area
66.78 sq mi
Water area
0.25 sq mi
Latitude
42.9162
Longitude
-95.1517
Timezone
Central (CT)
Area code
712
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
43.4%
47.2%
40.1%
$50k – $100k
37.6%
31.8%
33.4%
$100k – $200k
16.6%
18.4%
21.5%
Over $200k
2.4%
2.6%
5.0%
Demographics & statistics
$68,676
Median household income
20.3%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 354 29.3%
18 and over 853 70.7%
65 and over 279 23.1%
Median age 42.3 years
Race & ethnicity
American Indian / Alaska Native
0.1%
Group Count %
White 1,079 81.9%
Hispanic or Latino 111 8.4%
Other race 69 5.2%
Two or more races 58 4.4%
American Indian / Alaska Native 1 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
43.4%
47.2%
40.1%
$50k – $100k
37.6%
31.8%
33.4%
$100k – $200k
16.6%
18.4%
21.5%
Over $200k
2.4%
2.6%
5.0%
Range % of households
Under $10k 1.1%
$10k–$15k 2.4%
$15k–$25k 4.7%
$25k–$35k 10.7%
$35k–$50k 15.8%
$50k–$75k 22.9%
$75k–$100k 12.2%
$100k–$150k 17.3%
$150k–$200k 7.6%
$200k+ 5.3%
Median income $68,676
Housing
Housing overview
Metric Value
Median home value $94,100
Median rent / month $755
Owner occupied 85.3%
Renter occupied 14.7%
Vacant 12.6%
Single-family detached 92.2%
Large apartment buildings 0.0%
Mobile homes 1.0%
Median rooms 6.3
Avg household size (owned) 2.69
Year built
Era %
2020 or later 0.0%
2010–2019 0.8%
2000–2009 3.3%
1990–1999 3.7%
1980–1989 6.2%
1970–1979 16.7%
1960–1969 3.5%
1950–1959 7.0%
1940–1949 12.8%
1939 or earlier 46.0%
Bedrooms
Size % of units
No bedroom (studio) 1.9%
1 bedroom 7.4%
2 bedrooms 27.4%
3 bedrooms 36.5%
4 bedrooms 23.5%
5+ bedrooms 3.3%
Vehicles per household
Vehicles % of households
No vehicle 3.8%
1 vehicle 34.0%
2 vehicles 28.2%
3 or more 34.0%
Heating fuel
Fuel type %
Utility gas 51.6%
Electricity 22.0%
Propane / LP gas 24.4%
Fuel oil 1.3%
Wood 0.7%
Households & families
Household type Count %
Married-couple family 270 60.0%
Cohabiting couple 22 4.9%
Male householder, no spouse 76 16.9%
Female householder, no spouse 82 18.2%
Households with children under 18 137 30.4%
Households with seniors (65+) 167 37.1%
Average household size 2.62
Marital status
Status Male Female
Never married 27.5% 23.1%
Married 58.8% 62.5%
Separated 1.0% 0.4%
Widowed 2.6% 5.2%
Divorced 10.1% 8.8%
Education
Some college, no degree
25.2%
Graduate / professional
8.7%
Metric %
HS diploma or higher 93.5%
Bachelor's or higher 20.3%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 17 4.9%
Kindergarten 28 8.1%
Elementary school 149 42.9%
High school 125 36.0%
College / grad school 28 8.1%
Employment
Industry of employment
Education & healthcare
25.8%
Agriculture & mining
8.2%
Transportation & utilities
3.2%
Professional & management
3.0%
Arts, food & hospitality
2.0%
Public administration
2.0%
Finance & real estate
1.7%
Occupation
Category %
Management, business & arts 27.1%
Service 18.5%
Sales & office 22.4%
Natural resources & construction 17.0%
Production & transportation 15.0%
Employment type
Type %
Private sector 77.1%
Government 11.1%
Self-employed 10.3%
Unpaid family workers 1.5%
Commute
Method %
Drive alone 82.5%
Carpool 7.4%
Public transit 0.0%
Walk 3.0%
Work from home 6.1%
Other means 1.0%
Avg commute (minutes) 24.3
Poverty
Married-couple families
1.1%
Female-led households
25.0%
Income support
Source % of households
Social Security 39.1%
Retirement income 29.6%
Supplemental Security 2.4%
Cash public assistance 0.9%
Food stamps / SNAP 5.8%
Health indicators
Condition %
Obesity 33.6%
High blood pressure 35.1%
High cholesterol 35.4%
Diabetes 10.8%
Heart disease 7.7%
Stroke 3.5%
Asthma 9.0%
Arthritis 26.9%
Kidney disease 3.2%
Pulmonary disease 7.8%
Cancer 7.9%
Behavior / access %
Smoking 18.4%
Binge drinking 20.0%
No physical activity 26.1%
Less than 7 hrs sleep 29.7%
Depression 16.9%
Fair or poor health 14.4%
Poor mental health 12.9%
Poor physical health 10.6%
No health insurance 10.4%
Visited doctor (checkup) 76.0%
Visited dentist 65.9%
Cholesterol screening 89.1%
Teeth loss 14.8%
Veterans & disability
Veterans Count %
Civilian veterans 73 8.6%
Disability %
Any disability 15.0%
Under 18 6.8%
18–64 years 7.9%
65 and over 40.9%
Health insurance coverage
Type %
Private insurance 78.2%
Public insurance 37.2%
No insurance 2.1%
Uninsured under 19 3.6%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 1,169 96.9%
Spanish 56 4.8%
Other Indo-European 49 4.2%
Asian & Pacific Islander 4 0.3%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 1,160 96.1%
Born in same state 1,160 96.1%
Born in different state 974 80.7%
Foreign born 0 0.0%
Naturalized citizen 47 3.9%
Not a US citizen 19 40.4%
Ancestry
Ancestry Count %
French 135 11.2%
Italian 125 10.4%
Dutch 99 8.2%
Ancestry Count %
Polish 71 5.9%
English 59 4.9%
Arab 18 1.5%
Technology access
Metric % of households
Computer access 37.3%
Internet access 93.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50585
What city is ZIP code 50585 in?
ZIP code 50585 is primarily assigned to Sioux Rapids, Iowa.
What county is ZIP code 50585 in?
ZIP code 50585 falls within Buena Vista County, Iowa.
Is ZIP code 50585 mostly owner-occupied?
85% of occupied units in ZIP code 50585 are owner-occupied, well above the national average.
Does ZIP code 50585 have a large retiree population?
39% of households in ZIP code 50585 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 50585?
The median home value in ZIP code 50585 is $94,100.
What is the population of ZIP code 50585?
ZIP code 50585 has an estimated population of 1,207 residents, with a density of 18 people per square mile.
What timezone is ZIP code 50585 in?
ZIP code 50585 observes the CST timezone.
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