• county
  • FIPS 42087
  • Largest town: Lewistown

Mifflin County, Pennsylvania

Mifflin County had 45,935 residents in the Census Vintage 2024 estimate, on 411.0 square miles of land. It ranks 47th of 67 in Pennsylvania by population and 54th by land area.

Population
45,935
#47 of 67 in Pennsylvania · #1,072 in US
Area
411.0 sq mi
#54 of 67 in Pennsylvania · #2,461 in US
Density
112 / sq mi
#39 of 67 in Pennsylvania · #840 in US
Median household income
$58,758
#53 of 67 in Pennsylvania · #1,965 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Mifflin County within Pennsylvania. Pin: Harrisburg.

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Mifflin County population, land area and income

Mifflin County had 45,935 residents in the Census Vintage 2024 estimate, on 411.0 square miles of land. It ranks 47th of 67 in Pennsylvania by population and 54th by land area. That works out to 111.8 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Pennsylvania has 82,953 residents; Mifflin County is somewhat smaller.

Its SAIPE 2023 median household income of $58,758 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

45,935

3144th1st

1072nd of 3,144 (US)

Land area

411 sq mi

3144th1st

2461st of 3,144 (US)

Density

111.8 / sq mi

3144th1st

840th of 3,144 (US)

Median household income

$58,758

3143rd1st

1965th of 3,143 (US)

Rank within Pennsylvania (67)

Population

45,935

67th1st

47th of 67 (PA)

Land area

411 sq mi

67th1st

54th of 67 (PA)

Density

111.8 / sq mi

67th1st

39th of 67 (PA)

Median household income

$58,758

67th1st

53rd of 67 (PA)

How Mifflin County's population changed since 2020

Mifflin County lost 210 residents between the July 2020 and July 2024 estimates, a drop of 0.5%. That ranks 34th of 67 in Pennsylvania for growth. The median Pennsylvania county changed by -0.5%, and the state as a whole by +0.6%.

Since the April 2020 estimates base, Mifflin County recorded 2,279 births and 2,744 deaths, a natural change of -465. Net international migration added +48 and net domestic migration, people moving to or from other US counties, came to +212. The largest single component was natural change, which removed 465 people.

46.1k202046.2k202146.0k202246.0k202345.9k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
2,279
Deaths
2,744
Net international migration
+48
Net domestic migration
+212
Change, July 2023 to July 2024
-15

Where Mifflin County is

The Census internal point of Mifflin County is at 40.601600, -77.651800. It sits in UTM zone 18N. The map shades Pennsylvania's 67 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Mifflin County outlined. Dots are towns of 1,000+ people with residents in it.

Adams County: +4.0%Potter County: -2.4%Sullivan County: +1.6%Bucks County: +0.6%Carbon County: +1.5%McKean County: -2.3%Montour County: -0.1%Fulton County: -0.9%Columbia County: +2.0%Cameron County: -4.1%Elk County: -2.6%Bradford County: -0.4%Bedford County: +0.1%York County: +3.2%Monroe County: -1.1%Forest County: -5.2%Berks County: +2.4%Cambria County: -2.3%Franklin County: +2.1%Snyder County: -0.3%Somerset County: -2.5%Clarion County: -0.9%Indiana County: -0.2%Lackawanna County: +0.6%Wyoming County: -1.0%Lawrence County: -2.0%Mercer County: -2.2%Lehigh County: +3.0%Northampton County: +3.3%Cumberland County: +5.9%Fayette County: -3.6%Jefferson County: -2.5%Centre County: +1.2%Lebanon County: +1.4%Union County: -1.2%Clinton County: +1.3%Chester County: +4.8%Montgomery County: +2.6%Wayne County: +0.5%Pike County: +6.5%Susquehanna County: -0.6%Allegheny County: -1.4%Clearfield County: -2.9%Butler County: +2.7%Beaver County: -1.4%Crawford County: -2.1%Washington County: +0.5%Venango County: -1.7%Warren County: -3.0%Blair County: -2.0%Huntingdon County: -1.6%Lancaster County: +1.9%Luzerne County: +1.9%Westmoreland County: -1.0%Juniata County: -0.4%Armstrong County: -2.7%Tioga County: -0.8%Delaware County: +1.4%Northumberland County: -1.7%Mifflin County: -0.5%Lycoming County: -0.8%Perry County: +2.1%Philadelphia County: -1.7%Schuylkill County: +1.1%Dauphin County: +2.2%Greene County: -5.3%Erie County: -1.1%
Change 2020 to 2024
  1. < -2.2%
  2. < -1.0%
  3. < +0.1%
  4. < +1.9%
  5. ≥ +1.9%
no data

Orange pin: Mifflin County internal point. Dark pin: Harrisburg.

Internal point

Decimal
40.601600, -77.651800
DMS
40°36'5.76"N 77°39'6.48"W
UTM
18N 275629.7E 4497912.8N
Geohash
dr0ybzr9m
Plus code
87G4J82X+J7

Towns in Mifflin County

2 incorporated places of 1,000+ people have residents in Mifflin County, 10,360 people together, or 23% of the county. Each figure counts only the part of the town inside Mifflin County; towns marked "part" extend into another county. The largest is Lewistown with 8,394.

  1. 01Lewistown8,394
  2. 02Burnham1,966
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Mifflin County

The Census 2024 county adjacency file lists 5 neighbors for Mifflin County. The most populous is Centre County, PA, with 159,805 residents. Distances run between Census internal points in a straight line.

Distance to Harrisburg and the nearest big city

Harrisburg is 46.6 miles ESE of Mifflin County's internal point in a straight line. The nearest place of 100,000 or more is Baltimore, MD (population 568,271), 105.5 miles away. The nearest place of 10,000 or more is State College, PA (population 41,228), 16.9 miles away.

Mifflin County FIPS code

The FIPS code of Mifflin County is 42087: state code 42 for Pennsylvania plus county code 087. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $58,758.

Questions people ask

What is the population of Mifflin County, Pennsylvania?

The Census Vintage 2024 estimate for July 1, 2024 is 45,935. That is down 210 people (0.5%) from the July 2020 estimate of 46,145.

What is the FIPS code of Mifflin County?

42087. The first two digits (42) are Pennsylvania; the last three (087) identify the county.

What is the largest town in Mifflin County?

Lewistown, with 8,394 residents inside Mifflin County in 2024.

Which counties border Mifflin County?

5 county-equivalents border it in the Census 2024 adjacency file: Centre County, PA; Huntingdon County, PA; Union County, PA; Snyder County, PA; Juniata County, PA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.