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Upper Merion Township, Montgomery County, Pennsylvania

Upper Merion Township is a township in Montgomery County, Pennsylvania. About 34,977 people live there (2020–2024 estimate). It covers 17 sq mi (44 km²) of land and uses Eastern Time. It has its own local government.

PittsburghAllentown
Upper Merion Township in Pennsylvania
Tredyffrin Township
Upper Merion Township and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
34,977 ± 30
County
Montgomery County
School district
Upper Merion Area School District
Land area
17 sq mi (44 km²)
Type
TownshipIts own local government
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$121,985 ± $5,754
Median home value
$455,300 ± $12,303
Water area
0.33 sq mi (0.85 km²)
State
Pennsylvania
Census code (GEOID)
4209179136
Coordinates (central point)
40.089722, -75.380832
Check a point in the township finder

These coordinates mark a central point for the area, not a street address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Cities, towns and communities in Upper Merion Township, largest first

  1. King of Prussia (CDP)25,857 people
  2. Swedeland (CDP)1,630 people
  3. Swedesburg (CDP)806 people

These places’ central points lie inside Upper Merion Township. A place can reach across the line, and its government, if it has one, can be separate from the township’s.

Bordering areas, nearest first

  1. Bridgeport (borough)2.2 mi northeast
  2. West Norriton Township2.8 mi north
  3. West Conshohocken (borough)3.5 mi east
  4. Tredyffrin Township, Chester County4.0 mi southwest
  5. Lower Providence Township4.5 mi northwest
  6. Radnor Township, Delaware County4.6 mi south
  7. Plymouth Township4.8 mi east
  8. Schuylkill Township, Chester County6.1 mi west
  9. Lower Merion Township6.8 mi southeast

These towns, townships, cities and boroughs share a boundary with Upper Merion Township. Distances are straight lines between central points, not driving distances.

Other townships in Montgomery County, largest first

  1. Lower Merion Township64,174 people
  2. Abington Township58,664 people
  3. Cheltenham Township38,374 people
  4. Upper Dublin Township27,122 people
  5. Horsham Township26,970 people
  6. Upper Moreland Township26,131 people
  7. Montgomery Township26,076 people
  8. Lower Providence Township25,897 people
  9. Upper Providence Township24,666 people
  10. Springfield Township21,005 people
  11. Limerick Township20,978 people
  12. Whitpain Township20,446 people
All 37
  1. Whitemarsh Township19,966 people
  2. Hatfield Township18,937 people
  3. Plymouth Township18,417 people
  4. Towamencin Township18,035 people
  5. Upper Gwynedd Township17,202 people
  6. West Norriton Township16,324 people
  7. Lower Salford Township16,137 people
  8. Skippack Township14,520 people
  9. East Norriton Township14,106 people
  10. Lower Moreland Township14,070 people
  11. Franconia Township13,546 people
  12. New Hanover Township13,448 people
  13. Lower Pottsgrove Township12,557 people
  14. Lower Gwynedd Township12,219 people
  15. Douglass Township10,801 people
  16. Worcester Township10,793 people
  17. Perkiomen Township8,986 people
  18. Upper Hanover Township8,609 people
  19. Upper Pottsgrove Township6,064 people
  20. Lower Frederick Township4,905 people
  21. West Pottsgrove Township3,791 people
  22. Upper Frederick Township3,707 people
  23. Marlborough Township3,547 people
  24. Upper Salford Township3,171 people
  25. Salford Township3,059 people

People counts are American Community Survey 2020–2024 5-year estimates. See Montgomery County for its cities, ZIP Code areas and county seat.

Sunrise and sunset in Upper Merion Township

Longest day
15 hours 2 minutes around June 21
Shortest day
9 hours 19 minutes around December 21
Earliest sunrise
5:31 AM around June 14
Latest sunrise
7:36 AM the day before clocks go back in November
Earliest sunset
4:35 PM around December 8
Latest sunset
8:34 PM around June 27

Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.

Sunrise and sunset on the 15th of each month
DaySunriseSunsetDaylight
Jan 157:21 AM5:00 PM9 h 39 min
Feb 156:54 AM5:37 PM10 h 43 min
Mar 157:13 AM7:08 PM11 h 55 min
Apr 156:23 AM7:39 PM13 h 16 min
May 155:46 AM8:10 PM14 h 24 min
Jun 155:31 AM8:32 PM15 h 1 min
Jul 155:44 AM8:29 PM14 h 45 min
Aug 156:12 AM7:58 PM13 h 46 min
Sep 156:42 AM7:10 PM12 h 28 min
Oct 157:11 AM6:22 PM11 h 11 min
Nov 156:46 AM4:45 PM9 h 59 min
Dec 157:16 AM4:36 PM9 h 20 min

Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.

Before using this answer on a form

A township line is not always the line on your mail: a mailing address can name another town or post office, and school districts, ZIP Codes and tax districts follow their own lines. For taxes, voting or permits, check the full address with Montgomery County or the local office.

Find the township or town where you are now or find your county.

See this area on Census.gov ↗