Adams County, Pennsylvania

Adams County, Pennsylvania, has 107,594 residents (July 2025 estimate). Its county seat is Gettysburg. It uses Eastern Time and covers 519 sq mi (1,343 km²) of land.

PhiladelphiaPittsburghAllentown
Adams County in Pennsylvania
GettysburgLittlestownCarroll ValleyMcSherrystownLake Heritage
Adams County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
107,594
Land area
519 sq mi (1,343 km²)
County seat or government
Gettysburg
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$84,092 ± $2,436
Median home value
$268,500 ± $6,871
Median rent, with utilities
$1,115 ± $39
Homes lived in by their owners
78.9% ± 1.0 points
County type
County
Metro or micro area
Gettysburg, PA metro areaCentral county
Water area
3.15 sq mi (8.15 km²)
State
Pennsylvania
County code (FIPS)
42001
Coordinates (central point)
39.869437, -77.217750

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Adams County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 1733156,443 people
  2. 1732530,373 people
  3. 1701919,594 people
  4. 1735013,169 people
  5. 1734011,405 people
  6. 1722210,550 people
  7. 173168,497 people
  8. 173208,124 people
  9. 173075,467 people
  10. 173244,433 people
  11. 173014,133 people
  12. 173724,045 people
All 18
  1. 173443,719 people
  2. 173043,171 people
  3. 173532,825 people
  4. 17306537 people
  5. 17303395 people
  6. 1734331 people

18 ZIP Code areas overlap Adams County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

Adams County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Adams County, largest first

  1. Conewago Township7,964 people
  2. Cumberland Township7,116 people
  3. Oxford Township5,985 people
  4. Reading Township5,873 people
  5. Straban Township4,892 people
  6. Franklin Township4,722 people
  7. Mount Pleasant Township4,709 people
  8. Mount Joy Township3,830 people
  9. Menallen Township3,751 people
  10. Union Township3,102 people
  11. Germany Township2,879 people
  12. Hamilton Township2,749 people
All 21
  1. Latimore Township2,670 people
  2. Berwick Township2,619 people
  3. Butler Township2,587 people
  4. Hamiltonban Township2,397 people
  5. Huntington Township2,309 people
  6. Tyrone Township2,294 people
  7. Liberty Township1,204 people
  8. Freedom Township1,055 people
  9. Highland Township852 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Pennsylvania, by county

School districts in Adams County, largest first

  1. Gettysburg Area School District29,323 people
  2. Conewago Valley School District28,241 people
  3. Littlestown Area School District16,189 people
  4. Bermudian Springs School District13,269 people
  5. Upper Adams School District10,931 people
  6. Fairfield Area School District8,162 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Gettysburg, Pennsylvania (borough)8,254 people
  2. Littlestown, Pennsylvania (borough)4,850 people
  3. Carroll Valley, Pennsylvania (borough)3,992 people
  4. McSherrystown, Pennsylvania (borough)3,114 people
  5. Lake Heritage, Pennsylvania (CDP)2,997 people
  6. Bonneauville, Pennsylvania (borough)2,232 people
  7. Lake Meade, Pennsylvania (CDP)2,176 people
  8. New Oxford, Pennsylvania (borough)1,675 people
  9. East Berlin, Pennsylvania (borough)1,523 people
  10. Hampton, Pennsylvania (CDP)1,404 people
  11. Biglerville, Pennsylvania (borough)1,070 people
  12. Abbottstown, Pennsylvania (borough)940 people
All 26
  1. York Springs, Pennsylvania (borough)865 people
  2. Midway, Pennsylvania (CDP)860 people
  3. Arendtsville, Pennsylvania (borough)841 people
  4. McKnightstown, Pennsylvania (CDP)695 people
  5. Bendersville, Pennsylvania (borough)631 people
  6. Fairfield, Pennsylvania (borough)569 people
  7. Heidlersburg, Pennsylvania (CDP)457 people
  8. Aspers, Pennsylvania (CDP)405 people
  9. Cashtown, Pennsylvania (CDP)346 people
  10. Orrtanna, Pennsylvania (CDP)143 people
  11. Hunterstown, Pennsylvania (CDP)137 people
  12. Idaville, Pennsylvania (CDP)105 people
  13. Table Rock, Pennsylvania (CDP)98 people
  14. Gardners, Pennsylvania (CDP)76 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Cumberland County, Pennsylvania21 mi north
  2. Carroll County, Maryland24 mi southeast
  3. York County, Pennsylvania26 mi east
  4. Franklin County, Pennsylvania27 mi west
  5. Frederick County, Maryland29 mi south

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.