City · California
Plymouth, California
Plymouth, city, in Amador County, California. Plymouth had 1,174 residents on July 1, 2025 by the Census Bureau's estimate, up 9.1% since 2020; the 2020 Census counted 1,078 and the ACS 2020-2024 5-year estimates put it at 1,056 (±266). GEOID 0657834.
Residents, July 2025 estimate
1,174
Census Bureau estimate (no margin published)
2020 Census count: 1,078 · ACS 2020-2024: 1,056 ±266
Median household income
$92,500
±$22,618 (90% margin)
California: $99,122
Median home value
$376,900
±$44,217 (90% margin)
California: $734,700
Median gross rent
$1,330
±$102 (90% margin)
California: $2,036
Where is Plymouth and what county is it in?
Plymouth is a city in Amador County, California. It covers 2.7 square miles of land, 407 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Plymouth, and is it growing?
The Census Bureau estimates that 1,174 people lived in Plymouth on July 1, 2025, up 9.1% since 2020, while California shrank 0.5%. The 2020 Census counted 1,078 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,056 (±266).
| Measure | Plymouth | Amador County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,056 ±266 | 41,428 | no clear change |
| Households | 386 ±88 | 16,091 | no clear change |
| Average household size | 2.70 ±0.46 | 2.35 | no clear change |
| Housing units | 426 ±88 | 19,019 | no clear change |
Plymouth's population since 2000
From 980 in 2000 to 1,174 in 2025: up 19.8%. The 2000, 2010 and 2020 figures are census counts, each for Plymouth as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Plymouth?
The median resident of Plymouth is 46.6 years old; 15.7% are under 18 and 20.3% are 65 or older. The largest group is non-Hispanic white residents at 65.7%, then Hispanic or Latino residents (of any race) at 21.2%. 11.8% of residents were born outside the United States.
| Measure | Plymouth | Amador County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.6 ±4.6 | 49.7 | +12.8 |
| Under 18 years | 15.7% ±5.5 pts | 15.4% | – |
| 65 years and over | 20.3% ±6.0 pts | 27.6% | – |
| Male | 54.6% ±7.3 pts | 54.7% | – |
| Hispanic or Latino (any race) | 21.2% ±11.8 pts | 16.0% | −18.5 pts |
| White alone, not Hispanic | 65.7% ±12.0 pts | 72.6% | no clear change |
| Black or African American alone, not Hispanic | 6.2% ±7.8 pts | 1.9% | – |
| Asian alone, not Hispanic | 0.1% ±0.2 pts | 1.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 1.3% ±1.5 pts | 1.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.9 pts | 0.1% | – |
| Two or more races, not Hispanic | 5.5% ±3.8 pts | 5.8% | – |
| Some other race alone, not Hispanic | 0.0% ±3.9 pts | 1.2% | – |
| Born outside the United States | 11.8% ±7.5 pts | 5.8% | no clear change |
| Speak a language other than English at home (age 5+) | 21.6% ±10.0 pts | 10.5% | – |
| Civilian veterans (age 18+) | 6.5% ±4.1 pts | 9.9% | – |
| With a disability | 11.1% ±4.3 pts | 16.2% | – |
| No health insurance coverage | 7.4% ±5.2 pts | 4.9% | – |
| High school graduate or higher (age 25+) | 88.5% ±7.3 pts | 90.7% | – |
| Bachelor's degree or higher (age 25+) | 24.9% ±9.0 pts | 22.4% | +13.4 pts |
| Graduate or professional degree (age 25+) | 8.7% ±4.6 pts | 7.2% | – |
| Lived in the same house a year earlier | 92.1% ±5.2 pts | 87.5% | – |
| Moved from another state in the past year | 1.9% ±2.3 pts | 0.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Plymouth earn?
Half of Plymouth's 386 households earn less than $92,500 a year (±$22,618), against $88,044 in Amador County and $99,122 in California. In 2015-2019 it was $79,226 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Plymouth | Amador County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $92,500 ±$22,618 | $88,044 | no clear change |
| Mean household income | $105,391 ±$21,008 | $110,400 | – |
| Per capita income | $41,390 ±$9,363 | $44,320 | no clear change |
| People below the poverty line | 15.7% ±11.0 pts | 8.2% | – |
| Children under 18 below the poverty line | 23.5% ±22.0 pts | 5.4% | – |
| Households receiving SNAP | 5.4% ±7.7 pts | 9.8% | – |
| Households with a computer | 94.6% ±5.3 pts | 93.4% | – |
| Households with a broadband subscription | 92.2% ±5.9 pts | 88.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Plymouth?
Owners occupy 86.3% of Plymouth's occupied homes and renters 13.7%. The median owner-occupied home is valued at $376,900 by its owner (±$44,217). The median renter pays $1,330 a month including utilities.
| Measure | Plymouth | Amador County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $376,900 ±$44,217 | $449,800 | +$66,027 |
| Median gross rent | $1,330 ±$102 | $1,421 | no clear change |
| Renters paying 35% or more of income on rent | 47.2% ±41.1 pts | 36.7% | – |
| Median monthly owner costs, with a mortgage | $2,625 ±$1,018 | $2,472 | – |
| Owner-occupied homes | 86.3% ±10.8 pts | 80.4% | +23.6 pts |
| Renter-occupied homes | 13.7% ±10.8 pts | 19.6% | – |
| Housing units | 426 ±88 | 19,019 | no clear change |
| Homeowner vacancy rate | 0.0% ±12.0 pts | 1.0% | – |
| Rental vacancy rate | 18.5% ±31.6 pts | 3.0% | – |
| Single-family detached homes | 74.2% ±8.0 pts | 83.7% | – |
| Mobile homes | 10.3% ±6.8 pts | 6.3% | – |
| Built 2020 or later | 7.0% ±5.5 pts | 1.9% | – |
| Built 2010 to 2019 | 10.6% ±5.9 pts | 5.6% | – |
| Built 1939 or earlier | 17.4% ±9.6 pts | 7.1% | – |
| Households with no vehicle | 1.0% ±1.3 pts | 4.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Plymouth building?
Builders took permits for 0 new housing units in Plymouth in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 2.6 across California.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Plymouth work and get to work?
62.1% of Plymouth's workers drive alone. The average trip to work takes 23.1 minutes.
| Measure | Plymouth | Amador County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 56.3% ±8.1 pts | 48.3% | – |
| Unemployment rate | 5.4% ±6.4 pts | 5.4% | – |
| Drove alone to work | 62.1% ±16.0 pts | 73.9% | – |
| Carpooled | 17.5% ±11.9 pts | 8.4% | – |
| Public transportation | 0.0% ±8.4 pts | 0.4% | – |
| Walked | 0.6% ±1.1 pts | 2.3% | – |
| Worked from home | 14.4% ±11.2 pts | 13.3% | – |
| Mean travel time to work | 23.1 min ±6.6 | 34.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Plymouth?
No census tract lies mostly in Plymouth; 3 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 3.01Amador County | 5,172 | $81,250 |
| Tract 2.01Amador County | 2,815 | $89,306 |
| Tract 2.02Amador County | 1,870 | $104,423 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Plymouth) · Census block assignment files
How does Plymouth compare with other places in California?
By the Census Bureau's July 2025 estimates, Plymouth is the 9,679th-most populous of the 19,476 U.S. incorporated places that have one and the 466th-most populous of 483 in California.
Plymouth ranks 527th of 1,037 places in California with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 466th | 483 |
| Growth 2020-2025 (PEP) | 25th | 469 |
| Residents per square mile | 909th | 1,077 |
| Median household income | 527th | 1,037 |
| Per capita income | 564th | 1,073 |
| Median home value | 797th | 1,054 |
| Median gross rent | 783rd | 987 |
| Bachelor's degree or higher | 603rd | 988 |
| Median age | 254th | 1,075 |
| Owner-occupied share | 154th | 1,064 |
| Travel time to work | 827th | 1,069 |
Plymouth's figures with every place in California (CSV)
Every place in California, sortable · Compare Plymouth with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Plymouth?
23 of the 57 figures for Plymouth on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Plymouth are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Plymouth.