Upper Mifflin is a township in Cumberland County, Pennsylvania, home to about 1,328 people across 22 square miles. It has no ZIP code of its own: it’s part of 17240 and 17241.
Homes sold for a median of $168 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Population1,32861 per sq mi
Median home value$268,300Census, as estimated by owners
Price per sq ft$168Sold homes, 3 months to August 2026
Part is in Upper Mifflin, part in West Pennsboro and Penn Township (Cumberland County)
Each card is that ZIP code’s whole market, including any part outside Upper Mifflin. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The Upper Mifflin guide is on the way
We’re writing up Upper Mifflin’s story and what everyday life there is like, for people thinking about moving in.
History
What it’s like to live there
Getting around
Things to do
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Around Upper Mifflin
Distances
Nearest major airport
Baltimore/Washington International Thurgood Marshall Airport (BWI)81 miles away
Closer regional airport
Hagerstown Regional Richard A Henson Field (HGR)35 miles away
Nearest city of 250,000+
Baltimore, MD75 miles away
Nearest city of 1 million+
Philadelphia, PA124 miles away
Straight-line distances from the center of Upper Mifflin; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Upper Mifflin
U.S. Representative · Pennsylvania’s 13th DistrictJohn Joyce (R)
U.S. Representative · Pennsylvania’s 10th DistrictScott Perry (R)
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
Upper Mifflin had 1,319 residents in the 2020 census, down 2% since 2000.
It’s the 1535th largest of 2,568 towns in Pennsylvania by population.
Cumberland County grew from 50,344 residents in 1900 to 259,469 in 2020.
Cumberland County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 87°F in summer, and winter lows average 22°F. About 42.5 inches of rain and melted snow fall in a typical year, with about 34 inches of snow.
Source: NOAA 1991–2020 climate normals, Shippensburg, PA weather station (8 miles away).
Jobs in Cumberland County
131,167 jobs at 6,534 businesses in Cumberland County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
28 doctors and other health care providers list an office in Upper Mifflin’s ZIP codes.
Nearest hospitals
Upmc CarlisleGeneral hospital · emergency room · CMS rating 4 of 5 · Carlisle12.6 miles
Wellspan Chambersburg HospitalGeneral hospital · emergency room · CMS rating 4 of 5 · Chambersburg18.9 miles
Penn State Health Hampden Medical CenterGeneral hospital · emergency room · CMS rating 4 of 5 · Enola26.5 miles
Providers with an office here
Primary care doctors
6
Nurse practitioners and physician assistants
5
Mental health providers
4
Physical and occupational therapists
13
Pharmacies
2
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Places in and around Upper Mifflin
Parks (1 nearby)
North Newton Township Park · 6 acres2.8 mi
Grocery stores
BB's Grocery Outlet3.3 mi
Weis Markets3.8 mi
Counts are within about 3 miles of the center of town.
Public schools here are run by Big Spring SD. Check each district’s attendance zones for a specific address.
Public schools(5)
School
Grades
Students
Type
Distance
Mount Rock Elem SchNewville
K–5
331
Public
4.3 mi
Newville El SchNewville
K–5
351
Public
3.1 mi
Oak Flat El SchNewville
K–5
348
Public
4.1 mi
Big Spring MSNewville
6–8
550
Public
4.2 mi
Big Spring HSNewville
9–12
764
Public
4.4 mi
Private schools(9)
School
Grades
Students
Affiliation
Distance
Mowersville Christian AcademyNewburg
K–12
59
Brethren
7.6 mi
Covered Bridge Amish SchoolNewburg
1–8
27
Amish
4.0 mi
Hickory Lane SchoolNewburg
1–8
24
Amish
3.2 mi
Mcclays Mill Amish SchoolNewburg
1–8
16
Amish
9.3 mi
Meadow Run SchoolNewburg
1–8
18
Amish
3.2 mi
Mountain View SchoolNewburg
1–8
24
Amish
4.2 mi
Mowersville Amish Parochial SchoolNewburg
1–8
19
Amish
7.5 mi
Otterbein SchoolNewburg
1–8
10
Amish
8.4 mi
River Rock Academy Newville CampusNewville
4–12
31
Nonsectarian
3.2 mi
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with West Pennsboro, Hopewell Township (Cumberland County), Penn Township (Cumberland County), Lower Mifflin, Upper Frankford, North Newton, Newville, Lurgan, Newburg Borough (Cumberland County) and Cooke.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.