Township · Pennsylvania
Derry Township, Mifflin County, Pennsylvania
Derry Township, Mifflin County, township, in Mifflin County, Pennsylvania. Derry Township, Mifflin County had 7,244 residents on July 1, 2025 by the Census Bureau's estimate, up 0.4% since 2020; the 2020 Census counted 7,212 and the ACS 2020-2024 5-year estimates put it at 7,238 (±17). GEOID 4208718944.
Residents, July 2025 estimate
7,244
Census Bureau estimate (no margin published)
2020 Census count: 7,212 · ACS 2020-2024: 7,238 ±17
Median household income
$69,070
±$4,140 (90% margin)
Pennsylvania: $77,971
Median home value
$156,100
±$14,271 (90% margin)
Pennsylvania: $254,500
Median gross rent
$774
±$191 (90% margin)
Pennsylvania: $1,209
Where is Derry Township, Mifflin County and what county is it in?
Derry Township, Mifflin County is a township in Mifflin County, Pennsylvania. It covers 30.7 square miles of land, 235 residents per square mile in 2020.
3 places lie inside Derry Township (Mifflin County): Highland Park (CDP, 1,317 in 2020), Yeagertown (CDP, 1,002 in 2020) and Maitland (CDP, 323 in 2020).
Derry Township, Mifflin County is in the Lewistown, PA micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Derry Township, Mifflin County, and is it growing?
The Census Bureau estimates that 7,244 people lived in Derry Township, Mifflin County on July 1, 2025, up 0.4% since 2020, in line with Pennsylvania (+0.4%). The 2020 Census counted 7,212 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 7,238 (±17).
| Measure | Derry Township, Mifflin County | Mifflin County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 7,238±17 | 46,041 | −76 |
| Households | 3,170±207 | 18,510 | no clear change |
| Average household size | 2.19±0.14 | 2.45 | no clear change |
| Housing units | 3,443±227 | 21,468 | no clear change |
Derry Township, Mifflin County's population since 2000
From 7,256 in 2000 to 7,244 in 2025: down 0.2%. The 2000, 2010 and 2020 figures are census counts, each for Derry Township, Mifflin County as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Derry Township, Mifflin County?
The median resident of Derry Township, Mifflin County is 53.2 years old; 15.0% are under 18 and 32.8% are 65 or older. The largest group is non-Hispanic white residents at 94.7%, then non-Hispanic Black residents at 3.0%. 3.4% of residents were born outside the United States.
| Measure | Derry Township, Mifflin County | Mifflin County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 53.2±2.2 | 43.4 | no clear change |
| Under 18 years | 15.0%±3.0 pts | 22.6% | – |
| 65 years and over | 32.8%±3.2 pts | 22.0% | – |
| Male | 45.7%±2.7 pts | 49.1% | – |
| Hispanic or Latino (any race) | 1.1%±1.2 pts | 2.3% | – |
| White alone, not Hispanic | 94.7%±2.8 pts | 93.3% | no clear change |
| Black or African American alone, not Hispanic | 3.0%±2.2 pts | 1.0% | – |
| Asian alone, not Hispanic | 0.1%±0.2 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.4 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.4 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.1%±1.1 pts | 2.9% | – |
| Some other race alone, not Hispanic | 0.0%±0.4 pts | 0.1% | – |
| Born outside the United States | 3.4%±2.1 pts | 1.2% | – |
| Speak a language other than English at home (age 5+) | 1.0%±0.8 pts | 10.0% | – |
| Civilian veterans (age 18+) | 6.5%±2.3 pts | 8.0% | – |
| With a disability | 16.4%±3.3 pts | 15.1% | – |
| No health insurance coverage | 2.7%±1.6 pts | 12.8% | no clear change |
| High school graduate or higher (age 25+) | 87.3%±3.5 pts | 84.6% | – |
| Bachelor's degree or higher (age 25+) | 17.2%±3.9 pts | 14.9% | no clear change |
| Graduate or professional degree (age 25+) | 9.2%±3.1 pts | 5.5% | – |
| Lived in the same house a year earlier | 94.1%±2.8 pts | 91.2% | – |
| Moved from another state in the past year | 0.0%±0.4 pts | 0.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Derry Township, Mifflin County earn?
Half of Derry Township, Mifflin County's 3,170 households earn less than $69,070 a year (±$4,140), against $63,953 in Mifflin County and $77,971 in Pennsylvania. In 2015-2019 it was $66,039 in 2024 dollars; the margins of error cannot tell the two periods apart. 6.6% of residents live below the poverty line.
| Measure | Derry Township, Mifflin County | Mifflin County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $69,070±$4,140 | $63,953 | no clear change |
| Mean household income | $83,260±$6,112 | $76,786 | – |
| Per capita income | $37,209±$2,825 | $31,620 | no clear change |
| People below the poverty line | 6.6%±2.4 pts | 16.2% | no clear change |
| Children under 18 below the poverty line | 8.3%±6.4 pts | 28.9% | – |
| Households receiving SNAP | 16.0%±5.2 pts | 17.0% | – |
| Households with a computer | 88.9%±5.6 pts | 86.0% | – |
| Households with a broadband subscription | 83.8%±5.5 pts | 82.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Derry Township, Mifflin County?
Owners occupy 78.3% of Derry Township, Mifflin County's occupied homes and renters 21.7%. The median owner-occupied home is valued at $156,100 by its owner (±$14,271). The median renter pays $774 a month including utilities, and 39.4% of renters pay 35% or more of their income on rent.
| Measure | Derry Township, Mifflin County | Mifflin County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $156,100±$14,271 | $156,700 | no clear change |
| Median gross rent | $774±$191 | $822 | no clear change |
| Renters paying 35% or more of income on rent | 39.4%±15.3 pts | 29.8% | no clear change |
| Median monthly owner costs, with a mortgage | $1,288±$163 | $1,225 | – |
| Owner-occupied homes | 78.3%±5.7 pts | 71.1% | no clear change |
| Renter-occupied homes | 21.7%±5.7 pts | 28.9% | – |
| Housing units | 3,443±227 | 21,468 | no clear change |
| Homeowner vacancy rate | 1.6%±2.4 pts | 1.1% | – |
| Rental vacancy rate | 5.6%±8.6 pts | 3.2% | – |
| Single-family detached homes | 75.3%±5.4 pts | 70.3% | – |
| Mobile homes | 10.9%±5.2 pts | 8.2% | – |
| Built 2020 or later | 0.8%±1.2 pts | 0.6% | – |
| Built 2010 to 2019 | 2.9%±1.4 pts | 3.7% | – |
| Built 1939 or earlier | 21.0%±4.6 pts | 30.3% | – |
| Households with no vehicle | 4.5%±3.2 pts | 10.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Derry Township, Mifflin County building?
Builders took permits for 8 new housing units in Derry Township, Mifflin County in 2025 (8 in single-family houses), 1.1 per 1,000 residents against 2.0 across Pennsylvania.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Derry Township, Mifflin County work and get to work?
78.3% of Derry Township, Mifflin County's workers drive alone and 8.1% work from home. The average trip to work takes 19.4 minutes.
| Measure | Derry Township, Mifflin County | Mifflin County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 58.6%±4.0 pts | 59.7% | – |
| Unemployment rate | 2.4%±1.7 pts | 2.7% | – |
| Drove alone to work | 78.3%±7.5 pts | 79.4% | – |
| Carpooled | 11.3%±6.1 pts | 11.6% | – |
| Public transportation | 0.2%±0.4 pts | 0.2% | – |
| Walked | 1.8%±1.2 pts | 1.4% | – |
| Worked from home | 8.1%±4.6 pts | 6.6% | – |
| Mean travel time to work | 19.4 min±2.6 | 25.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Derry Township, Mifflin County?
2 census tracts lie mostly in Derry Township, Mifflin County (2020 census blocks). Their median household incomes run from $62,026 (Tract 9611.01) to $69,724 (Tract 9611.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9611.02Mifflin County | 3,793 | $69,724 |
| Tract 9611.01Mifflin County | 3,445 | $62,026 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Derry Township, Mifflin County) · Census block assignment files
How does Derry Township, Mifflin County compare with other places in Pennsylvania?
By the Census Bureau's July 2025 estimates, Derry Township, Mifflin County is the 1,678th-most populous of the 16,079 U.S. towns and townships that have one and the 282nd-most populous of 1,542 in Pennsylvania.
Derry Township, Mifflin County ranks 1,407th of 2,136 places in Pennsylvania with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 282nd | 1,542 |
| Growth 2020-2025 (PEP) | 731st | 1,764 |
| Residents per square mile | 1,373rd | 2,159 |
| Median household income | 1,407th | 2,136 |
| Per capita income | 1,277th | 2,157 |
| Median home value | 1,711th | 2,146 |
| Median gross rent | 1,671st | 1,963 |
| Poverty rate | 1,127th | 1,606 |
| Bachelor's degree or higher | 1,723rd | 2,129 |
| Median age | 187th | 2,157 |
| Owner-occupied share | 1,198th | 2,149 |
| Work from home | 1,387th | 1,710 |
| Travel time to work | 1,939th | 2,156 |
Derry Township, Mifflin County's figures with every place in Pennsylvania (CSV)
Every place in Pennsylvania, sortable · Compare Derry Township, Mifflin County with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Derry Township, Mifflin County?
17 of the 57 figures for Derry Township, Mifflin County on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Derry Township, Mifflin County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.