Fairfield County, CT Population by Year

In 2021, the population of Fairfield County was 959,768, a 0.41% increase year-by-year from 2020. Previously, in 2020, Fairfield County's population was 955,895, an increase of 1.22% compared to a population of 944,388 in 2019.
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Updated Sep 18, 2023

Fairfield County, CT population between 2000 and 2021

Over the last 20 plus years, between 2000 and 2021, population of Fairfield County increased by 75,436. In this period, the peak population was 959,768 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 884,332 - -
2001 888,713 4,381 0.5%
2002 892,154 3,441 0.39%
2003 895,135 2,981 0.33%
2004 895,760 625 0.07%
2005 895,342 -418 -0.05%
2006 893,204 -2,138 -0.24%
2007 893,839 635 0.07%
2008 899,376 5,537 0.62%
2009 905,178 5,802 0.65%
2010 919,371 14,193 1.57%
2011 928,099 8,728 0.95%
2012 935,293 7,194 0.78%
2013 940,189 4,896 0.52%
2014 944,524 4,335 0.46%
2015 945,323 799 0.08%
2016 945,096 -227 -0.02%
2017 944,107 -989 -0.1%
2018 945,511 1,404 0.15%
2019 944,388 -1,123 -0.12%
2020 955,895 11,507 1.22%
2021 959,768 3,873 0.41%
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Fairfield County, CT population from 2000 to 2021

From 2000 to 2010, Fairfield County's population increased by 35,039 (3.96%), 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, Fairfield County's population increased by 36,524 (3.97%), 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 Fairfield County's population from 2000 to 2021, with years on x-axis and population on y-axis
Fairfield County's population from 2000 to 2021. The estimated population at the end of 2021 was 959,768. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2021, Fairfield County's population peaked in year 2021 at 959,768.

Between the year 2000 and 2021, Fairfield County's population was lowest in year 2000 at 884,332.

Fairfield County, CT annual population growth rate

Between the years 2000 and 2021, i.e. 21 annual cycles, the population of Fairfield County grew year by year for 16 years and declined for 5 years.

From 2000 to 2021, Fairfield County had an average annual population growth rate of 0.41% per year. Overall the population grew 8.53% between 2000 and 2021.

The graph shows Fairfield County's annual population change from 2000 to 2021, with years on x-axis and population annual growth on y-axis
Fairfield County's annual population change from 2000 to 2021. The average annual growth rate from 2000 to 2021 was 0.41% per year. In the last two years, the population grew by 15,380. Source: U.S. Census Bureau (Population Estimates Program)

From 2009 to 2010, Fairfield County's population grew the most with an increase of 14,193 (1.57%).

While from 2005 and 2006, Fairfield County's population declined the most with a negative growth of 2,138 (-0.24%).

Things to know

Is Fairfield County, CT population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Fairfield County's population increased by 15,380 between 2019 and 2021. The increase was 11,507 (1.22%) between 2019 and 2020; and increase of 3,873 (0.41%) between 2020 and 2021.

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

Between 2011 and 2021, population of Fairfield County increased by 24,475 (2.62%). The population was highest at 959,768 in the year 2021 and lowest at 935,293 in the year 2012. Overall the average growth rate witnessed for the last 10 years was 0.34%.

References

Datasets

Explore datasets by year of publication.
2023
Fairfield 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 Fairfield 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 Fairfield 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 Fairfield County was 959,768, a 0.41% increase year-by-year from 2020. Previously, in 2020, Fairfield County population was 955,895, an increase of 1.22% compared to a population of 944,388 in 2019. Over the last 20 plus years, between 2000 and 2021, population of Fairfield County increased by 75,436. In this period, the peak population was 959,768 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).

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

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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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