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New Underwood, SD
Key Indicators
A quick look at key numbers
Population
509
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates
Median Age
46.6
years ∙ half population younger than 46.6, half older
Diversity Index
29.7%
chance two random people differ in race and ethnicity
Nativity
0%
foreign-born population
Geographic Context
Location, size, and surroundings
About
New Underwood is a city within Pennington County, South Dakota, United States.
Co-ordinates
DEC44.098584° N, 102.840319° W
DMS44° 05′ 54.90″ N, 102° 50′ 25.15″ W
Population Density & area
351/sq mi
(135.4/km²)
Demographics & Living
Who lives here, how households are formed, and community composition
Population Composition
Key characteristics of the population
Sex Distribution
48.9%
male
Male
48.9%
Female
51.1%
males per 100 females
New Underwood
95.8
Pennington County
104.1
South Dakota
103.1
Nativity
0%
foreign-born population
% Foreign-born
New Underwood
0%
Pennington County
2.5%
South Dakota
4%
Age Distribution
How the population is spread across age groups
Median Age
46.6
years ∙ half population younger than 46.6, half older
Dependency ratio
96.5
dependents per 100 working-age adults
New Underwood
96.5
Pennington County
72.9
South Dakota
73
AGE DISTRIBUTION
Distribution of age group
Median age
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Age Group | |||
| Children (Under 18) | 27.1% | 22% | 24.2% |
| Working age (18-64) | 50.9% | 57.9% | 57.8% |
| Senior (65+) | 22% | 20.1% | 18% |
| Dependency ratio | |||
| Total dependency ratio | 96.5 | 72.9 | 73 |
| Child dependency ratio | 53.3 | 38 | 41.9 |
| Old-age dependency ratio | 43.2 | 34.8 | 31.1 |
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
29.7%
chance two random people differ in race and ethnicity
New Underwood
29.7%
Pennington County
38.2%
South Dakota
35.3%
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 New Underwood population
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Hispanic or Latino | 10% | 5.7% | 4.8% |
| Mexican | 8.4% | 3.6% | 2.6% |
| Puerto Rican | 0% | 0.5% | 0.4% |
| Cuban | 0% | 0.1% | 0.1% |
| Other Hispanic / Latino | 1.6% | 1.5% | 1.7% |
| Not Hispanic or Latino | 90% | 94.3% | 95.2% |
| One race | 85.9% | 86.8% | 90.8% |
| White | 83.1% | 77.8% | 79.8% |
| Black or African American | 0% | 1.1% | 2.1% |
| American Indian and Alaska Native | 2.8% | 6% | 7.1% |
| Asian | 0% | 1.2% | 1.4% |
| Native Hawaiian and Other Pacific Islander | 0% | 0% | 0% |
| Some Other Race | 0% | 0.7% | 0.3% |
| Two or more races (Multiracial) | 4.1% | 7.5% | 4.4% |
Household & Families Composition
Household size, type, and family structure
Household structure
58.3%
family
Family
58.3%
Non family
41.7%
% family households
New Underwood
58.3%
Pennington County
59.9%
South Dakota
61.3%
Average household size
3.07
persons per household
Household & Family COMPOSITION
Households
Percentage of New Underwood population
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Total households | 151 | 46,370 | 365,544 |
| Average houshold size | 3.07 | 2.37 | 2.39 |
| Family households | 88 | 27,786 | 224,058 |
| Average family size | 3.24 | 3.01 | 3.05 |
| Married couple family | 67 | 21,628 | 176,597 |
| Other families | 21 | 6,158 | 47,461 |
| Male householder | 6 | 2,331 | 17,711 |
| Female householder | 15 | 3,827 | 29,750 |
| Non-family households | 63 | 18,584 | 141,486 |
| One-person households | 32 | 15,276 | 116,755 |
| Male householder | 10 | 7,324 | 57,880 |
| Senior (65+) living alone | 5 | 2,220 | 17,403 |
| Female householder | 22 | 7,952 | 58,875 |
| Senior (65+) living alone | 17 | 4,046 | 29,381 |
| Other living arrangements | 31 | 3,308 | 24,731 |
Housing Profile
Housing stock, ownership, rentals, and cost burdens
Total housing units
190
housing units
New Underwood
190
Pennington County
51,681
South Dakota
408,584
Occupancy status
79.5%
occupied
Occupied
79.5%
Vacant
20.5%
vacancy rate
New Underwood
20.5%
Pennington County
10.3%
South Dakota
10.5%
Housing Characteristics
How the housing supply is structured and used
Types of Housing unit
64.2%
Single family houses
Median Year Built
1966
Half of houses were built before 1966, 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
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Rooms per unit | |||
| Median rooms | 5.2 | 5.8 | 5.9 |
| 1–3 rooms | 15.8% | 16.5% | 13.6% |
| 4–6 rooms | 65.8% | 44% | 44.6% |
| 7+ rooms | 18.4% | 39.2% | 41.8% |
| Bedrooms | |||
| No bedroom / studio | 1.6% | 3.1% | 1.9% |
| 1 bedroom | 14.2% | 9.6% | 10.1% |
| 2 bedrooms | 26.3% | 27.6% | 26.4% |
| 3 bedrooms | 42.1% | 32.6% | 32% |
| 4+ bedrooms | 15.8% | 27% | 29.6% |
| At a glance | |||
| Median year built | 1966 | 1984 | 1982 |
| Total housing units | 190 | 51,681 | 408,584 |
Occupancy Profile
Who is inside and how they use it
Homeownership
68.2%
owners
Renter-occupied
31.8%
Owner-occupied
68.2%
homeownership rate
New Underwood
68.2%
Pennington County
69.3%
South Dakota
68.6%
Average household size
3.11
Owner-occupied
3
Renter-occupied
owner-occupied average size
New Underwood
3.11
Pennington County
2.49
South Dakota
2.54
Housing Characteristics
Occupied unit characteristics
Tenure, crowding, and utilities
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Total occupied units | 151 | 46,370 | 365,544 |
| Year moved in | |||
| 2020 or later | 16.6% | 27.6% | 25.4% |
| 2010 to 2019 | 38.4% | 39.5% | 39.7% |
| 2000 to 2009 | 27.2% | 16.4% | 16.2% |
| 1999 or earlier | 17.9% | 16.5% | 18.7% |
| Occupants per room | |||
| 1.00 or fewer | 98% | 98.6% | 97.7% |
| 1.01 to 1.50 | 0% | 0.9% | 1.6% |
| 1.51 or more | 2% | 0.5% | 0.7% |
| Vehicles availability | |||
| No vehicles | 4.6% | 5.6% | 5.2% |
| 1 vehicle | 18.5% | 30.2% | 28.4% |
| 2 vehicles | 45.7% | 35.5% | 36.3% |
| 3 or more vehicles | 31.1% | 28.7% | 30.1% |
| House heating fuel used | |||
| Gas | 55.6% | 65.3% | 63.1% |
| Electricity | 42.4% | 31.4% | 32.4% |
| Solar | 0% | 0% | 0% |
| Fuel oil, kerosene etc | 0% | 0.5% | 1.3% |
| All other fuels | 0% | 1.9% | 2.4% |
| No fuel used | 2% | 0.9% | 0.8% |
| Selected characteristics | |||
| Lacking complete plumbing | 2% | 0.7% | 0.5% |
| Lacking complete kitchen | 2% | 1.1% | 0.9% |
| No telephone service available | 2% | 0.7% | 1.1% |
Housing Value
What owner-occupied units are worth
Median home value
$193,800
owner-occupied units
Housing Cost Burden
32.1%
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
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Property value | |||
| Median Value | $193,800 | $302,200 | $257,400 |
| Under $100,000 | 20.4% | 9.7% | 16.1% |
| $100,000 - $200,000 | 31% | 12.6% | 19.5% |
| $200,000 - $300,000 | 33% | 27.3% | 24.4% |
| $300,000 - $500,000 | 12.6% | 31.9% | 26% |
| $500,000 - $1,000,000 | 2.9% | 16.2% | 12.1% |
| $1,000,000 and more | 0% | 2.4% | 1.8% |
| Owner-occupied households | |||
| With a mortgage | 54.4% | 59% | 54.5% |
| Without a mortgage | 45.6% | 41% | 45.5% |
| Median monthly owner costs | |||
| With a mortgage | $1,583 | $1,803 | $1,680 |
| Without a mortgage | $614 | $689 | $617 |
| Gross rent | |||
| Median rent | $850 | $1,120 | $946 |
Education Profile
How educated is the community and how education pays off
Adults with a college degree
10.4%
of adults 25+ with a bachelor's degree or higher
New Underwood
10.4%
Pennington County
34.6%
South Dakota
31.9%
Adults without a high school diploma
7.3%
of adults (25+) without a high school diploma
New Underwood
7.3%
Pennington County
5.4%
South Dakota
6.8%
School Enrollment
Who is enrolled in school and at what level
School enrollment
134
population (age 3+) enrolled in school
College-going rate (18-24 yr olds)
0%
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
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Total enrolled (age 3+) | 134 | 25,056 | 216,085 |
| Nursery / preschool | 9% | 6.1% | 6.1% |
| K–12 | 90.3% | 72.1% | 73% |
| Kindergarten | 15.7% | 7.6% | 5.6% |
| Elementary: Grades 1–4 | 18.7% | 21.3% | 22.3% |
| Elementary: Grades 5–8 | 28.4% | 22.5% | 22.8% |
| High School: Grades 9–12 | 27.6% | 20.8% | 22.3% |
| College or graduate school | 0.7% | 21.8% | 20.9% |
| College, undergraduate | 0.7% | 18.8% | 17.1% |
| Graduate, professional school | 0% | 3% | 3.8% |
| College-going rate · 18-24 yr olds | 0% | 31.6% | 35.1% |
| School type | |||
| Public school | 97% | 83.9% | 86.9% |
| Private school | 3% | 16.1% | 13.1% |
Education Attainment by Level & Gender
What is the highest level of education completed among adults
Education attainment
357
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+
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Population (25+) | 357 | 79,182 | 603,746 |
| Less than 9th grade | 2.5% | 2.1% | 2.6% |
| 9th–12th, no diploma | 4.8% | 3.3% | 4.2% |
| High school diploma or GED | 52.4% | 27% | 29% |
| Some college, no degree | 16.5% | 21.3% | 19.9% |
| Associate's degree | 13.4% | 11.7% | 12.3% |
| Bachelor's degree or higher | 10.4% | 34.6% | 31.9% |
| Bachelor's degree | 8.7% | 22% | 21.9% |
| Graduate or professional | 1.7% | 12.7% | 10% |
| High School or higher | 92.7% | 94.6% | 93.2% |
Earnings by education level
percentage as applicable
Median Earnings
$43,036
Median earnings for adults 25+, by level
Poverty Rate
0%
for ages 25+, with bachelors degree or higher
Outcomes by Education Level
Earnings and poverty rates across education levels (25+)
Adults 25+
| New Underwood | Pennington County | South Dakota | |
|---|---|---|---|
| Median earnings | |||
| Population 25+, with earnings | $43,036 | $47,874 | $49,402 |
| Less than high school graduate | $46,250 | $35,096 | $33,790 |
| High school graduate (includes equivalency) | $14,583 | $37,925 | $40,544 |
| Some college or associate's degree | $41,250 | $45,755 | $47,061 |
| Bachelor's degree | $50,417 | $55,597 | $58,363 |
| Graduate or professional degree | $— | $78,860 | $72,377 |
| Poverty rates | |||
| Less than high school graduate | 0% | 27.2% | 28% |
| High school graduate (includes equivalency) | 64.7% | 14% | 13.2% |
| Some college or associate's degree | 0% | 9% | 8.5% |
| Bachelor's degree or higher | 0% | 3.7% | 4.2% |
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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