Greenwich Population

2010–2026

1,658

2026 projection

0.4% since 2020 (increase)

05001K1.5K2K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Greenwich. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20261,658-40.24%
20251,662+30.18%
20241,659-20.12%
20231,661-70.42%
20221,668-10.06%
20211,669+181.09%
20201,651-402.37%
20191,691-70.41%
20181,698-90.53%
20171,707-90.52%

Showing 10 of 17 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Greenwich has a population change higher than Washington County, about the same as New York, and lower than the U.S.

  • United States+3.1%
  • New York−0.6%
  • Greenwich−0.6%
  • Washington County−2.9%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Greenwich Demographics

38.6median age

Median age

Female43.3 yrs
Male36.2 yrs

Adults

1,339
291 seniors (65+) · 22% of adults1,048 other adults

Sex

Female 52.6% · 889Male 47.4% · 800

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 17 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Greenwich Income

$71,111median household income

Median household income

$71,111

Half of households earn more, half earn less

Median earnings

$51,132

Typical yearly pay for a worker 25 or older.

Poverty rate

9.1%

About 1 in 11 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Greenwich Marital Status

46% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married46%52%41%
Never married32%39%27%
Divorced12%7%15%
Widowed6%1%11%
Separated4%<1%6%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201