Greenwich, Connecticut Population by Year

In 2021, the population of Greenwich town was 63,514, a 0.18% increase year-by-year from 2020. Previously, in 2020, Greenwich town's population was 63,397, an increase of 0.78% compared to a population of 62,907 in 2019.
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Updated Sep 18, 2023

Greenwich, Connecticut population between 2000 and 2021

Over the last 20 plus years, between 2000 and 2021, population of Greenwich town increased by 2,309. In this period, the peak population was 63,514 in the year 2021. The numbers suggest that the population has not reached its peak yet and is showing a trend of further growth.

Year Population Year on Year Change Change in Percent
2000 61,205 - -
2001 61,399 194 0.32%
2002 61,510 111 0.18%
2003 61,742 232 0.38%
2004 61,751 9 0.01%
2005 61,770 19 0.03%
2006 61,594 -176 -0.28%
2007 61,837 243 0.39%
2008 62,240 403 0.65%
2009 62,670 430 0.69%
2010 61,310 -1,360 -2.17%
2011 61,899 589 0.96%
2012 62,368 469 0.76%
2013 62,474 106 0.17%
2014 62,589 115 0.18%
2015 62,615 26 0.04%
2016 62,547 -68 -0.11%
2017 62,438 -109 -0.17%
2018 62,795 357 0.57%
2019 62,907 112 0.18%
2020 63,397 490 0.78%
2021 63,514 117 0.18%
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Greenwich, Connecticut population from 2000 to 2021

From 2000 to 2010, Greenwich town's population increased by 105 (0.17%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 9.63%.

From 2010 to 2020, Greenwich town's population increased by 2,087 (3.40%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.

The graph shows Greenwich town's population from 2000 to 2021, with years on x-axis and population on y-axis
Greenwich town's population from 2000 to 2021. The estimated population at the end of 2021 was 63,514. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2021, Greenwich town's population peaked in year 2021 at 63,514.

Between the year 2000 and 2021, Greenwich town's population was lowest in year 2000 at 61,205.

Greenwich, Connecticut annual population growth rate

Between the years 2000 and 2021, i.e. 21 annual cycles, the population of Greenwich town grew year by year for 17 years and declined for 4 years.

From 2000 to 2021, Greenwich town had an average annual population growth rate of 0.18% per year. Overall the population grew 3.77% between 2000 and 2021.

The graph shows Greenwich town's annual population change from 2000 to 2021, with years on x-axis and population annual growth on y-axis
Greenwich town's annual population change from 2000 to 2021. The average annual growth rate from 2000 to 2021 was 0.18% per year. In the last two years, the population grew by 607. Source: U.S. Census Bureau (Population Estimates Program)

From 2010 to 2011, Greenwich town's population grew the most with an increase of 589 (0.96%).

While from 2009 and 2010, Greenwich town's population declined the most with a negative growth of 1,360 (-2.17%).

Things to know

Is Greenwich, Connecticut population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Greenwich town's population increased by 607 between 2019 and 2021. The increase was 490 (0.78%) between 2019 and 2020; and increase of 117 (0.18%) between 2020 and 2021.

How has the population of Greenwich, Connecticut changed in the last 10 years?

Between 2011 and 2021, population of Greenwich town increased by 1,146 (1.84%). The population was highest at 63,514 in the year 2021 and lowest at 62,368 in the year 2012. Overall the average growth rate witnessed for the last 10 years was 0.26%.

References

Datasets

Explore datasets by year of publication.
2023
Greenwich, Connecticut Population Dataset: Yearly Figures, Population Change, and Percent Change Analysis
Last updated September 18, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Greenwich town population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of Greenwich town across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2021, the population of Greenwich town was 63,514, a 0.18% increase year-by-year from 2020. Previously, in 2020, Greenwich town population was 63,397, an increase of 0.78% compared to a population of 62,907 in 2019. Over the last 20 plus years, between 2000 and 2021, population of Greenwich town increased by 2,309. In this period, the peak population was 63,514 in the year 2021. The numbers suggest that the population has not reached its peak yet and is showing a trend of further growth. Source: U.S. Census Bureau Population Estimates Program (PEP).

Greenwich town population by year

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

  • From 2000 to 2021

Variables / Data Columns

  • Year: This column displays the data year (Measured annually and for years 2000 to 2021)
  • Population: The population for the specific year for the Greenwich town is shown in this column.
  • Year on Year Change: This column displays the change in Greenwich town population for each year compared to the previous year.
  • Change in Percent: This column displays the year on year change as a percentage. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Greenwich town Population by Year. You can refer the same here

If you're looking for datasets from another year, please feel free to contact us at research@neilsberg.com and we'll be happy to assist you further.

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Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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