Town of Plymouth, Naugatuck Valley Planning Region, Connecticut

The Town of Plymouth is a town in Naugatuck Valley Planning Region, Connecticut. About 11,746 people live there (2020–2024 estimate). It covers 21.9 sq mi (56.7 km²) of land and uses Eastern Time. It has its own local government.

BridgeportStamfordNew Haven
Town of Plymouth in Connecticut
Town of BristolTown of Thomaston
Town of Plymouth and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
11,746 ± 40
Planning region
Naugatuck Valley Planning Region
School district
Plymouth School District
Land area
21.9 sq mi (56.7 km²)
Type
TownIts own local government
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$94,514 ± $13,668
Median home value
$275,000 ± $13,795
Water area
0.46 sq mi (1.2 km²)
State
Connecticut
Census code (GEOID)
0914060750
Coordinates (central point)
41.666392, -73.026516

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.

Census place in the Town of Plymouth

  1. Terryville (CDP)5,461 people

This place’s central point lies inside the Town of Plymouth. A place can reach across the line, and its government, if it has one, can be separate from the town’s.

Bordering areas, nearest first

  1. Town of Thomaston3.6 mi west
  2. Town of Bristol4.5 mi east
  3. Town of Wolcott5.8 mi southeast
  4. Town of Harwinton, Northwest Hills Planning Region6.8 mi north
  5. Town of Waterbury7.5 mi south

These towns, townships, cities and boroughs share a boundary with the Town of Plymouth. Distances are straight lines between central points, not driving distances.

Other towns in Naugatuck Valley Planning Region, largest first

  1. Town of Waterbury114,869 people
  2. Town of Bristol61,462 people
  3. Town of Shelton41,889 people
  4. Town of Naugatuck31,800 people
  5. Town of Cheshire29,040 people
  6. Town of Watertown22,253 people
  7. Town of Southbury20,071 people
  8. Town of Ansonia19,033 people
  9. Town of Seymour16,889 people
  10. Town of Wolcott16,279 people
  11. Town of Oxford12,991 people
  12. Town of Derby12,487 people
All 18
  1. Town of Woodbury9,833 people
  2. Town of Prospect9,458 people
  3. Town of Middlebury7,807 people
  4. Town of Thomaston7,492 people
  5. Town of Beacon Falls6,147 people
  6. Town of Bethlehem3,423 people

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

Sunrise and sunset in the Town of Plymouth

Longest day
15 hours 13 minutes around June 21
Shortest day
9 hours 9 minutes around December 21
Earliest sunrise
5:17 AM around June 15
Latest sunrise
7:29 AM the day before clocks go back in November
Earliest sunset
4:21 PM around December 8
Latest sunset
8:30 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 157:16 AM4:46 PM9 h 30 min
Feb 156:47 AM5:25 PM10 h 38 min
Mar 157:04 AM6:58 PM11 h 54 min
Apr 156:12 AM7:32 PM13 h 20 min
May 155:32 AM8:04 PM14 h 32 min
Jun 155:17 AM8:28 PM15 h 11 min
Jul 155:30 AM8:25 PM14 h 55 min
Aug 156:00 AM7:52 PM13 h 52 min
Sep 156:32 AM7:01 PM12 h 29 min
Oct 157:04 AM6:11 PM11 h 7 min
Nov 156:40 AM4:31 PM9 h 51 min
Dec 157:11 AM4:22 PM9 h 11 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 town 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 Naugatuck Valley Planning Region or the local office.

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

See this area on Census.gov ↗