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Seneca Township, MI
Key Indicators
A quick look at key numbers
Population
1,038
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates
Median Age
49.6
years ∙ half population younger than 49.6, half older
Diversity Index
15%
chance two random people differ in race and ethnicity
Nativity
0.9%
foreign-born population
Geographic Context
Location, size, and surroundings
About
Seneca Township is a township in Lenawee County, Michigan, United States.
Co-ordinates
DEC41.761579° N, 84.168143° W
DMS41° 45′ 41.68″ N, 84° 10′ 05.31″ W
Population Density & area
25.89/sq mi
(10/km²)
Demographics & Living
Who lives here, how households are formed, and community composition
Population Composition
Key characteristics of the population
Sex Distribution
51.7%
male
Male
51.7%
Female
48.3%
males per 100 females
Seneca Township
107.2
Lenawee County
103.1
Michigan
98.2
Nativity
0.9%
foreign-born population
% Foreign-born
Seneca Township
0.9%
Lenawee County
2.2%
Michigan
7.2%
Age Distribution
How the population is spread across age groups
Median Age
49.6
years ∙ half population younger than 49.6, half older
Dependency ratio
84.7
dependents per 100 working-age adults
Seneca Township
84.7
Lenawee County
69.2
Michigan
66.3
AGE DISTRIBUTION
Distribution of age group
Median age
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Age Group | |||
| Children (Under 18) | 19.7% | 20.5% | 21.2% |
| Working age (18-64) | 54.1% | 59.2% | 60.2% |
| Senior (65+) | 26.2% | 20.3% | 18.6% |
| Dependency ratio | |||
| Total dependency ratio | 84.7 | 69.2 | 66.3 |
| Child dependency ratio | 36.3 | 34.8 | 35.3 |
| Old-age dependency ratio | 48.4 | 34.4 | 31 |
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
15%
chance two random people differ in race and ethnicity
Seneca Township
15%
Lenawee County
27.1%
Michigan
45.2%
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 Seneca Township population
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Hispanic or Latino | 4.6% | 8.9% | 5.9% |
| Mexican | 3.1% | 7.3% | 4% |
| Puerto Rican | 1.5% | 0.8% | 0.5% |
| Cuban | 0% | 0.1% | 0.2% |
| Other Hispanic / Latino | 0% | 0.8% | 1.2% |
| Not Hispanic or Latino | 95.4% | 91.1% | 94.1% |
| One race | 92.2% | 87.8% | 89.6% |
| White | 92% | 84.8% | 72.4% |
| Black or African American | 0.2% | 2.3% | 13.1% |
| American Indian and Alaska Native | 0% | 0.1% | 0.3% |
| Asian | 0% | 0.3% | 3.4% |
| Native Hawaiian and Other Pacific Islander | 0% | 0% | 0% |
| Some Other Race | 0% | 0.3% | 0.5% |
| Two or more races (Multiracial) | 3.2% | 3.3% | 4.5% |
Household & Families Composition
Household size, type, and family structure
Household structure
64.5%
family
Family
64.5%
Non family
35.5%
% family households
Seneca Township
64.5%
Lenawee County
67.2%
Michigan
62.4%
Average household size
2.29
persons per household
Household & Family COMPOSITION
Households
Percentage of Seneca Township population
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Total households | 453 | 38,871 | 4,076,369 |
| Average houshold size | 2.29 | 2.41 | 2.42 |
| Family households | 292 | 26,132 | 2,545,621 |
| Average family size | 2.85 | 2.89 | 3.05 |
| Married couple family | 229 | 19,739 | 1,878,767 |
| Other families | 63 | 6,393 | 666,854 |
| Male householder | 8 | 2,340 | 199,150 |
| Female householder | 55 | 4,053 | 467,704 |
| Non-family households | 161 | 12,739 | 1,530,748 |
| One-person households | 141 | 10,609 | 1,250,418 |
| Male householder | 81 | 5,084 | 583,425 |
| Senior (65+) living alone | 63 | 2,002 | 188,594 |
| Female householder | 60 | 5,525 | 666,993 |
| Senior (65+) living alone | 26 | 3,138 | 349,637 |
| Other living arrangements | 20 | 2,130 | 280,330 |
Housing Profile
Housing stock, ownership, rentals, and cost burdens
Total housing units
516
housing units
Seneca Township
516
Lenawee County
43,761
Michigan
4,622,236
Occupancy status
87.8%
occupied
Occupied
87.8%
Vacant
12.2%
vacancy rate
Seneca Township
12.2%
Lenawee County
11.2%
Michigan
11.8%
Housing Characteristics
How the housing supply is structured and used
Types of Housing unit
93.4%
Single family houses
Median Year Built
1962
Half of houses were built before 1962, 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
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Rooms per unit | |||
| Median rooms | 6.7 | 6.1 | 5.9 |
| 1–3 rooms | 3.8% | 8.3% | 10.5% |
| 4–6 rooms | 41.6% | 49.1% | 51.9% |
| 7+ rooms | 54.4% | 42.4% | 37.6% |
| Bedrooms | |||
| No bedroom / studio | 1.9% | 1.1% | 1.6% |
| 1 bedroom | 1.6% | 7.2% | 8.9% |
| 2 bedrooms | 20.7% | 21.4% | 24.6% |
| 3 bedrooms | 59.7% | 47.5% | 43.5% |
| 4+ bedrooms | 16.1% | 22.8% | 21.4% |
| At a glance | |||
| Median year built | 1962 | 1968 | 1972 |
| Total housing units | 516 | 43,761 | 4,622,236 |
Occupancy Profile
Who is inside and how they use it
Homeownership
95.1%
owners
Renter-occupied
4.9%
Owner-occupied
95.1%
homeownership rate
Seneca Township
95.1%
Lenawee County
79.6%
Michigan
73.2%
Average household size
2.23
Owner-occupied
3.59
Renter-occupied
owner-occupied average size
Seneca Township
2.23
Lenawee County
2.47
Michigan
2.54
Housing Characteristics
Occupied unit characteristics
Tenure, crowding, and utilities
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Total occupied units | 453 | 38,871 | 4,076,369 |
| Year moved in | |||
| 2020 or later | 6% | 17.8% | 21% |
| 2010 to 2019 | 30.2% | 39.7% | 39.5% |
| 2000 to 2009 | 18.1% | 15.9% | 16% |
| 1999 or earlier | 45.7% | 26.5% | 23.4% |
| Occupants per room | |||
| 1.00 or fewer | 97.8% | 98.4% | 98.4% |
| 1.01 to 1.50 | 2.2% | 1.2% | 1.2% |
| 1.51 or more | 0% | 0.4% | 0.4% |
| Vehicles availability | |||
| No vehicles | 0.4% | 5.4% | 7% |
| 1 vehicle | 31.3% | 29.9% | 34.8% |
| 2 vehicles | 30% | 40.1% | 38.3% |
| 3 or more vehicles | 38.2% | 24.7% | 19.8% |
| House heating fuel used | |||
| Gas | 65.6% | 86.9% | 83.6% |
| Electricity | 2.6% | 8.3% | 12.1% |
| Solar | 0% | 0% | 0% |
| Fuel oil, kerosene etc | 11.9% | 1.7% | 0.8% |
| All other fuels | 19.8% | 2.5% | 3% |
| No fuel used | 0% | 0.4% | 0.5% |
| Selected characteristics | |||
| Lacking complete plumbing | 0.7% | 0.4% | 0.4% |
| Lacking complete kitchen | 0% | 1.1% | 0.7% |
| No telephone service available | 0% | 0.8% | 0.7% |
Housing Value
What owner-occupied units are worth
Median home value
$161,800
owner-occupied units
Housing Cost Burden
32.4%
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
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Property value | |||
| Median Value | $161,800 | $196,800 | $231,600 |
| Under $100,000 | 26.5% | 16.2% | 16.8% |
| $100,000 - $200,000 | 42.2% | 34.8% | 24.7% |
| $200,000 - $300,000 | 15.3% | 26.5% | 23.4% |
| $300,000 - $500,000 | 12.8% | 17.4% | 24.1% |
| $500,000 - $1,000,000 | 2.1% | 4.3% | 9.2% |
| $1,000,000 and more | 1.2% | 0.8% | 1.6% |
| Owner-occupied households | |||
| With a mortgage | 40.1% | 60.5% | 57.8% |
| Without a mortgage | 59.9% | 39.5% | 42.2% |
| Median monthly owner costs | |||
| With a mortgage | $1,388 | $1,409 | $1,569 |
| Without a mortgage | $542 | $566 | $602 |
| Gross rent | |||
| Median rent | $— | $987 | $1,129 |
Education Profile
How educated is the community and how education pays off
Adults with a college degree
11.6%
of adults 25+ with a bachelor's degree or higher
Seneca Township
11.6%
Lenawee County
22.7%
Michigan
32.4%
Adults without a high school diploma
13.6%
of adults (25+) without a high school diploma
Seneca Township
13.6%
Lenawee County
8.6%
Michigan
8%
School Enrollment
Who is enrolled in school and at what level
School enrollment
179
population (age 3+) enrolled in school
College-going rate (18-24 yr olds)
5%
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
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Total enrolled (age 3+) | 179 | 22,015 | 2,312,914 |
| Nursery / preschool | 1.7% | 6.6% | 5.6% |
| K–12 | 93.3% | 69% | 67.9% |
| Kindergarten | 2.8% | 5% | 5.2% |
| Elementary: Grades 1–4 | 21.8% | 20.6% | 19.7% |
| Elementary: Grades 5–8 | 41.3% | 20.7% | 20.8% |
| High School: Grades 9–12 | 27.4% | 22.7% | 22.2% |
| College or graduate school | 5% | 24.4% | 26.5% |
| College, undergraduate | 5% | 21.6% | 21.1% |
| Graduate, professional school | 0% | 2.8% | 5.4% |
| College-going rate · 18-24 yr olds | 5% | 39.9% | 41.1% |
| School type | |||
| Public school | 93.3% | 79.6% | 85.2% |
| Private school | 6.7% | 20.4% | 14.8% |
Education Attainment by Level & Gender
What is the highest level of education completed among adults
Education attainment
794
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+
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Population (25+) | 794 | 69,411 | 7,008,507 |
| Less than 9th grade | 4.8% | 2.3% | 2.6% |
| 9th–12th, no diploma | 8.8% | 6.3% | 5.4% |
| High school diploma or GED | 37.5% | 35.5% | 28% |
| Some college, no degree | 28.6% | 22.8% | 21.9% |
| Associate's degree | 8.7% | 10.4% | 9.8% |
| Bachelor's degree or higher | 11.6% | 22.7% | 32.4% |
| Bachelor's degree | 7.2% | 14.8% | 19.7% |
| Graduate or professional | 4.4% | 7.9% | 12.7% |
| High School or higher | 86.4% | 91.4% | 92.1% |
Earnings by education level
percentage as applicable
Median Earnings
$43,667
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+
| Seneca Township | Lenawee County | Michigan | |
|---|---|---|---|
| Median earnings | |||
| Population 25+, with earnings | $43,667 | $45,475 | $50,316 |
| Less than high school graduate | $36,354 | $28,998 | $31,851 |
| High school graduate (includes equivalency) | $42,059 | $37,019 | $37,777 |
| Some college or associate's degree | $46,042 | $48,543 | $44,844 |
| Bachelor's degree | $42,188 | $55,906 | $66,893 |
| Graduate or professional degree | $46,750 | $73,030 | $85,195 |
| Poverty rates | |||
| Less than high school graduate | 0% | 18.1% | 27.4% |
| High school graduate (includes equivalency) | 2.7% | 12.1% | 15.2% |
| Some college or associate's degree | 3.4% | 6.9% | 10.3% |
| Bachelor's degree or higher | 0% | 4.7% | 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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