Groton Town, Connecticut Population by Year

In 2021, the population of Groton town was 38,456, a 0.03% decrease year-by-year from 2020. Previously, in 2020, Groton town's population was 38,466, an increase of 0.28% compared to a population of 38,358 in 2019.
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Updated Sep 18, 2023

Groton Town, Connecticut population between 2000 and 2021

Over the last 20 plus years, between 2000 and 2021, population of Groton town decreased by 1,571. In this period, the peak population was 42,575 in the year 2006. The numbers suggest that the population has already reached its peak and is showing a trend of decline.

Year Population Year on Year Change Change in Percent
2000 40,027 - -
2001 40,625 598 1.49%
2002 40,036 -589 -1.45%
2003 40,258 222 0.55%
2004 41,322 1,064 2.64%
2005 39,882 -1,440 -3.48%
2006 42,575 2,693 6.75%
2007 39,175 -3,400 -7.99%
2008 39,303 128 0.33%
2009 39,345 42 0.11%
2010 40,094 749 1.9%
2011 39,826 -268 -0.67%
2012 40,231 405 1.02%
2013 40,100 -131 -0.33%
2014 39,735 -365 -0.91%
2015 39,288 -447 -1.12%
2016 39,093 -195 -0.5%
2017 38,880 -213 -0.54%
2018 38,644 -236 -0.61%
2019 38,358 -286 -0.74%
2020 38,466 108 0.28%
2021 38,456 -10 -0.03%
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Groton Town, Connecticut population from 2000 to 2021

From 2000 to 2010, Groton town's population increased by 67 (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, Groton town's population decreased by 1,628 (4.06%), 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 Groton town's population from 2000 to 2021, with years on x-axis and population on y-axis
Groton town's population from 2000 to 2021. The estimated population at the end of 2021 was 38,456. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2021, Groton town's population peaked in year 2006 at 42,575.

Between the year 2000 and 2021, Groton town's population was lowest in year 2019 at 38,358.

Groton Town, Connecticut annual population growth rate

Between the years 2000 and 2021, i.e. 21 annual cycles, the population of Groton town grew year by year for 9 years and declined for 12 years.

From 2000 to 2021, Groton town had an average annual population growth rate of -0.19% per year. Overall the population shrank 3.92% between 2000 and 2021.

The graph shows Groton town's annual population change from 2000 to 2021, with years on x-axis and population annual growth on y-axis
Groton town's annual population change from 2000 to 2021. The average annual growth rate from 2000 to 2021 was -0.19% per year. In the last two years, the population grew by 98. Source: U.S. Census Bureau (Population Estimates Program)

From 2005 to 2006, Groton town's population grew the most with an increase of 2,693 (6.75%).

While from 2006 and 2007, Groton town's population declined the most with a negative growth of 3,400 (-7.99%).

Things to know

Is Groton Town, Connecticut population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Groton town's population increased by 98 between 2019 and 2021. The increase was 108 (0.28%) between 2019 and 2020; and decrease of 10 (0.03%) between 2020 and 2021.

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

Between 2011 and 2021, population of Groton town decreased by 1,775 (4.41%). The population was highest at 40,231 in the year 2012 and lowest at 38,358 in the year 2019. Overall the average growth rate witnessed for the last 10 years was -0.35%.

References

Datasets

Explore datasets by year of publication.
2023
Groton Town, 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 Groton 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 Groton 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 Groton town was 38,456, a 0.03% decrease year-by-year from 2020. Previously, in 2020, Groton town population was 38,466, an increase of 0.28% compared to a population of 38,358 in 2019. Over the last 20 plus years, between 2000 and 2021, population of Groton town decreased by 1,571. In this period, the peak population was 42,575 in the year 2006. The numbers suggest that the population has already reached its peak and is showing a trend of decline. Source: U.S. Census Bureau Population Estimates Program (PEP).

Groton 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 Groton town is shown in this column.
  • Year on Year Change: This column displays the change in Groton 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 Groton 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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