New London County, CT Population by Year

In 2021, the population of New London County was 268,805, a 0.21% increase year-by-year from 2020. Previously, in 2020, New London County's population was 268,248, an increase of 0.93% compared to a population of 265,784 in 2019.
Neilsberg Research Avatar
Updated Sep 18, 2023

New London County, CT population between 2000 and 2021

Over the last 20 plus years, between 2000 and 2021, population of New London County increased by 9,094. In this period, the peak population was 274,173 in the year 2012. 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 259,711 - -
2001 261,162 1,451 0.56%
2002 263,019 1,857 0.71%
2003 264,429 1,410 0.54%
2004 266,539 2,110 0.8%
2005 265,237 -1,302 -0.49%
2006 268,322 3,085 1.16%
2007 264,256 -4,066 -1.52%
2008 265,499 1,243 0.47%
2009 265,611 112 0.04%
2010 274,019 8,408 3.17%
2011 273,086 -933 -0.34%
2012 274,173 1,087 0.4%
2013 273,093 -1,080 -0.39%
2014 271,593 -1,500 -0.55%
2015 269,818 -1,775 -0.65%
2016 268,639 -1,179 -0.44%
2017 267,829 -810 -0.3%
2018 267,089 -740 -0.28%
2019 265,784 -1,305 -0.49%
2020 268,248 2,464 0.93%
2021 268,805 557 0.21%
Exploring New London County's Diversity? Request Customized Data Now!

New London County, CT population from 2000 to 2021

From 2000 to 2010, New London County's population increased by 14,308 (5.51%), 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, New London County's population decreased by 5,771 (2.11%), 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 New London County's population from 2000 to 2021, with years on x-axis and population on y-axis
New London County's population from 2000 to 2021. The estimated population at the end of 2021 was 268,805. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2021, New London County's population peaked in year 2012 at 274,173.

Between the year 2000 and 2021, New London County's population was lowest in year 2000 at 259,711.

New London County, CT annual population growth rate

Between the years 2000 and 2021, i.e. 21 annual cycles, the population of New London County grew year by year for 11 years and declined for 10 years.

From 2000 to 2021, New London County had an average annual population growth rate of 0.17% per year. Overall the population grew 3.50% between 2000 and 2021.

The graph shows New London County's annual population change from 2000 to 2021, with years on x-axis and population annual growth on y-axis
New London County's annual population change from 2000 to 2021. The average annual growth rate from 2000 to 2021 was 0.17% per year. In the last two years, the population grew by 3,021. Source: U.S. Census Bureau (Population Estimates Program)

From 2009 to 2010, New London County's population grew the most with an increase of 8,408 (3.17%).

While from 2006 and 2007, New London County's population declined the most with a negative growth of 4,066 (-1.52%).

Things to know

Is New London County, CT population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, New London County's population increased by 3,021 between 2019 and 2021. The increase was 2,464 (0.93%) between 2019 and 2020; and increase of 557 (0.21%) between 2020 and 2021.

How has the population of New London County, CT changed in the last 10 years?

Between 2011 and 2021, population of New London County decreased by 5,368 (1.96%). The population was highest at 274,173 in the year 2012 and lowest at 265,784 in the year 2019. Overall the average growth rate witnessed for the last 10 years was -0.16%.

References

Datasets

Explore datasets by year of publication.
2023
New London County, CT 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 New London County 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 New London County 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 New London County was 268,805, a 0.21% increase year-by-year from 2020. Previously, in 2020, New London County population was 268,248, an increase of 0.93% compared to a population of 265,784 in 2019. Over the last 20 plus years, between 2000 and 2021, population of New London County increased by 9,094. In this period, the peak population was 274,173 in the year 2012. 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).

New London County 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 New London County is shown in this column.
  • Year on Year Change: This column displays the change in New London County 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 New London County 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.

About the author

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

Share

This article is for informational purposes only and is not intended to be legal or tax advice. We recommend that you consult with a qualified professional such as a lawyer or accountant before making a decision. Many of the products and services featured here are from our affiliate partners. We may receive commissions on purchases made from our chosen links. Read advertiser disclosure.