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Shell Rock, IA
Key Indicators
A quick look at key numbers
Population
1,625
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates
Median Age
35.6
years ∙ half population younger than 35.6, half older
Diversity Index
12.7%
chance two random people differ in race and ethnicity
Nativity
3%
foreign-born population
Geographic Context
Location, size, and surroundings
About
Shell Rock is a city within Butler County, Iowa, United States.
Co-ordinates
DEC42.712345° N, 92.581658° W
DMS42° 42′ 44.44″ N, 92° 34′ 53.97″ W
Population Density & area
1,016/sq mi
(391.6/km²)
Demographics & Living
Who lives here, how households are formed, and community composition
Population Composition
Key characteristics of the population
Sex Distribution
47.8%
male
Male
47.8%
Female
52.2%
males per 100 females
Shell Rock
91.4
Butler County
98.7
Iowa
100.6
Nativity
3%
foreign-born population
% Foreign-born
Shell Rock
3%
Butler County
2.3%
Iowa
5.9%
Age Distribution
How the population is spread across age groups
Median Age
35.6
years ∙ half population younger than 35.6, half older
Dependency ratio
87
dependents per 100 working-age adults
Shell Rock
87
Butler County
83.7
Iowa
69.6
AGE DISTRIBUTION
Distribution of age group
Median age
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Age Group | |||
| Children (Under 18) | 29.4% | 22.4% | 22.9% |
| Working age (18-64) | 53.4% | 54.4% | 59% |
| Senior (65+) | 17.2% | 23.2% | 18.1% |
| Dependency ratio | |||
| Total dependency ratio | 87 | 83.7 | 69.6 |
| Child dependency ratio | 54.9 | 41.1 | 38.8 |
| Old-age dependency ratio | 32.1 | 42.6 | 30.7 |
Racial & Ethnic Composition
Racial and ethnic makeup and how it compares
Race & Ethnicity
Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.
Diversity Index
12.7%
chance two random people differ in race and ethnicity
Shell Rock
12.7%
Butler County
10.4%
Iowa
31.4%
Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.
RACIAL & ETHNIC COMPOSITION
Race & Ethnicity
Percentage of Shell Rock population
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Hispanic or Latino | 5.4% | 1.7% | 7.3% |
| Mexican | 4.2% | 1.5% | 5% |
| Puerto Rican | 0% | 0% | 0.3% |
| Cuban | 0% | 0% | 0.1% |
| Other Hispanic / Latino | 1.2% | 0.2% | 1.8% |
| Not Hispanic or Latino | 94.6% | 98.3% | 92.7% |
| One race | 93.9% | 96.7% | 89.2% |
| White | 93.3% | 94.6% | 82.3% |
| Black or African American | 0.6% | 0.2% | 3.8% |
| American Indian and Alaska Native | 0% | 0% | 0.2% |
| Asian | 0% | 1.3% | 2.5% |
| Native Hawaiian and Other Pacific Islander | 0% | 0% | 0.2% |
| Some Other Race | 0% | 0.7% | 0.3% |
| Two or more races (Multiracial) | 0.7% | 1.6% | 3.5% |
Household & Families Composition
Household size, type, and family structure
Household structure
69.9%
family
Family
69.9%
Non family
30.1%
% family households
Shell Rock
69.9%
Butler County
69.8%
Iowa
61.6%
Average household size
2.63
persons per household
Household & Family COMPOSITION
Households
Percentage of Shell Rock population
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Total households | 601 | 5,863 | 1,315,707 |
| Average houshold size | 2.63 | 2.4 | 2.36 |
| Family households | 420 | 4,091 | 809,836 |
| Average family size | 3.16 | 2.86 | 2.98 |
| Married couple family | 356 | 3,533 | 635,347 |
| Other families | 64 | 558 | 174,489 |
| Male householder | 10 | 234 | 56,457 |
| Female householder | 54 | 324 | 118,032 |
| Non-family households | 181 | 1,772 | 505,871 |
| One-person households | 155 | 1,494 | 406,436 |
| Male householder | 68 | 709 | 193,582 |
| Senior (65+) living alone | 10 | 221 | 58,028 |
| Female householder | 87 | 785 | 212,854 |
| Senior (65+) living alone | 52 | 526 | 111,645 |
| Other living arrangements | 26 | 278 | 99,435 |
Housing Profile
Housing stock, ownership, rentals, and cost burdens
Total housing units
671
housing units
Shell Rock
671
Butler County
6,570
Iowa
1,437,699
Occupancy status
89.6%
occupied
Occupied
89.6%
Vacant
10.4%
vacancy rate
Shell Rock
10.4%
Butler County
10.8%
Iowa
8.5%
Housing Characteristics
How the housing supply is structured and used
Types of Housing unit
87.2%
Single family houses
Median Year Built
1959
Half of houses were built before 1959, and half after.
Note: Median year built reflects occupied units only; distribution includes all units.
Housing Characteristics
Units, rooms & bedrooms
Physical characteristics of housing units
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Rooms per unit | |||
| Median rooms | 6 | 6.3 | 5.9 |
| 1–3 rooms | 7.9% | 5.6% | 11.8% |
| 4–6 rooms | 54.6% | 47.4% | 47.4% |
| 7+ rooms | 37.4% | 47.1% | 40.7% |
| Bedrooms | |||
| No bedroom / studio | 0% | 0.2% | 1.7% |
| 1 bedroom | 9.4% | 6.3% | 9.2% |
| 2 bedrooms | 18.2% | 26.3% | 27% |
| 3 bedrooms | 49.2% | 41.8% | 37.3% |
| 4+ bedrooms | 23.2% | 25.5% | 24.7% |
| At a glance | |||
| Median year built | 1959 | 1960 | 1972 |
| Total housing units | 671 | 6,570 | 1,437,699 |
Occupancy Profile
Who is inside and how they use it
Homeownership
84.9%
owners
Renter-occupied
15.1%
Owner-occupied
84.9%
homeownership rate
Shell Rock
84.9%
Butler County
84.1%
Iowa
71.7%
Average household size
2.62
Owner-occupied
2.65
Renter-occupied
owner-occupied average size
Shell Rock
2.62
Butler County
2.42
Iowa
2.5
Housing Characteristics
Occupied unit characteristics
Tenure, crowding, and utilities
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Total occupied units | 601 | 5,863 | 1,315,707 |
| Year moved in | |||
| 2020 or later | 18% | 15.6% | 24.3% |
| 2010 to 2019 | 52.7% | 36.2% | 38.7% |
| 2000 to 2009 | 16% | 19.9% | 16.4% |
| 1999 or earlier | 13.3% | 28.3% | 20.7% |
| Occupants per room | |||
| 1.00 or fewer | 98.8% | 98.6% | 98.4% |
| 1.01 to 1.50 | 1.2% | 1.4% | 1.1% |
| 1.51 or more | 0% | 0% | 0.5% |
| Vehicles availability | |||
| No vehicles | 3.3% | 3.6% | 5.4% |
| 1 vehicle | 22.1% | 21.4% | 30.5% |
| 2 vehicles | 36.4% | 35.1% | 37.8% |
| 3 or more vehicles | 38.1% | 39.9% | 26.3% |
| House heating fuel used | |||
| Gas | 70.2% | 74.2% | 72.8% |
| Electricity | 29.8% | 22% | 24.4% |
| Solar | 0% | 0.1% | 0.1% |
| Fuel oil, kerosene etc | 0% | 0.1% | 0.3% |
| All other fuels | 0% | 3.5% | 1.8% |
| No fuel used | 0% | 0.2% | 0.6% |
| Selected characteristics | |||
| Lacking complete plumbing | 0% | 0.2% | 0.3% |
| Lacking complete kitchen | 0% | 0.5% | 0.8% |
| No telephone service available | 0% | 0.5% | 0.8% |
Housing Value
What owner-occupied units are worth
Median home value
$163,100
owner-occupied units
Housing Cost Burden
20.9%
of homeowners with a mortgage are cost-burdened
Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.
Financial characteristics
Property value and housing costs
Tenure, crowding, and utilities
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Property value | |||
| Median Value | $163,100 | $165,400 | $208,000 |
| Under $100,000 | 10.9% | 23.7% | 17.8% |
| $100,000 - $200,000 | 57.7% | 38.9% | 30% |
| $200,000 - $300,000 | 17.6% | 21.8% | 23.1% |
| $300,000 - $500,000 | 13.3% | 13.2% | 21.3% |
| $500,000 - $1,000,000 | 0% | 2.2% | 6.8% |
| $1,000,000 and more | 0.4% | 0.1% | 1.1% |
| Owner-occupied households | |||
| With a mortgage | 72.5% | 58.3% | 59.4% |
| Without a mortgage | 27.5% | 41.7% | 40.6% |
| Median monthly owner costs | |||
| With a mortgage | $1,269 | $1,319 | $1,533 |
| Without a mortgage | $500 | $546 | $616 |
| Gross rent | |||
| Median rent | $931 | $812 | $972 |
Education Profile
How educated is the community and how education pays off
Adults with a college degree
20.3%
of adults 25+ with a bachelor's degree or higher
Shell Rock
20.3%
Butler County
21.4%
Iowa
31.4%
Adults without a high school diploma
7.9%
of adults (25+) without a high school diploma
Shell Rock
7.9%
Butler County
6.1%
Iowa
6.7%
School Enrollment
Who is enrolled in school and at what level
School enrollment
406
population (age 3+) enrolled in school
College-going rate (18-24 yr olds)
10.7%
of 18-24-year-olds in college or graduate school
Enrollment & school type
Enrollment levels, college-going rate, and public vs private school split
Population 3+ currently enrolled in a school
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Total enrolled (age 3+) | 406 | 3,038 | 784,322 |
| Nursery / preschool | 2.2% | 8.2% | 6.2% |
| K–12 | 86.9% | 80.4% | 68.4% |
| Kindergarten | 10.3% | 6% | 5.2% |
| Elementary: Grades 1–4 | 27.1% | 24.3% | 20.3% |
| Elementary: Grades 5–8 | 27.3% | 23.4% | 21.3% |
| High School: Grades 9–12 | 22.2% | 26.7% | 21.6% |
| College or graduate school | 10.8% | 11.4% | 25.4% |
| College, undergraduate | 7.4% | 9.5% | 20.8% |
| Graduate, professional school | 3.4% | 1.9% | 4.6% |
| College-going rate · 18-24 yr olds | 10.7% | 19.9% | 42.3% |
| School type | |||
| Public school | 88.7% | 94.1% | 84.4% |
| Private school | 11.3% | 5.9% | 15.6% |
Education Attainment by Level & Gender
What is the highest level of education completed among adults
Education attainment
1,036
population 25 years and over
Attainment by gender
Male vs Female
Adults (25+) · Share within each education level
Educational Attainment Overview
Distribution and key education attainment rates for adults (25+)
Highest credential completed · adults 25+
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Population (25+) | 1,036 | 10,120 | 2,154,149 |
| Less than 9th grade | 3.7% | 2% | 2.7% |
| 9th–12th, no diploma | 4.2% | 4.1% | 4% |
| High school diploma or GED | 38.4% | 37.4% | 30% |
| Some college, no degree | 18.5% | 20.2% | 19.7% |
| Associate's degree | 15% | 14.9% | 12.1% |
| Bachelor's degree or higher | 20.3% | 21.4% | 31.4% |
| Bachelor's degree | 15.2% | 16.3% | 20.9% |
| Graduate or professional | 5.1% | 5.1% | 10.5% |
| High School or higher | 92.2% | 93.9% | 93.3% |
Earnings by education level
percentage as applicable
Median Earnings
$54,800
Median earnings for adults 25+, by level
Poverty Rate
2.4%
for ages 25+, with bachelors degree or higher
Outcomes by Education Level
Earnings and poverty rates across education levels (25+)
Adults 25+
| Shell Rock | Butler County | Iowa | |
|---|---|---|---|
| Median earnings | |||
| Population 25+, with earnings | $54,800 | $48,860 | $51,106 |
| Less than high school graduate | $32,813 | $40,136 | $35,996 |
| High school graduate (includes equivalency) | $53,750 | $45,236 | $41,528 |
| Some college or associate's degree | $57,679 | $49,462 | $47,635 |
| Bachelor's degree | $57,750 | $52,236 | $62,744 |
| Graduate or professional degree | $85,833 | $76,786 | $80,022 |
| Poverty rates | |||
| Less than high school graduate | 2.7% | 14.5% | 21.5% |
| High school graduate (includes equivalency) | 10.3% | 10.4% | 12.4% |
| Some college or associate's degree | 3.5% | 6.4% | 8.1% |
| Bachelor's degree or higher | 2.4% | 7.3% | 3.8% |
About Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
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