Nassau County, NY population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of Nassau County increased by 45,475. In this period, the peak population was 1.39 million in the year 2021. 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 | 1,336,240 | - | - |
| 2001 | 1,334,603 | -1,637 | -0.12% |
| 2002 | 1,334,988 | 385 | 0.03% |
| 2003 | 1,332,974 | -2,014 | -0.15% |
| 2004 | 1,328,965 | -4,009 | -0.30% |
| 2005 | 1,321,043 | -7,922 | -0.60% |
| 2006 | 1,311,168 | -9,875 | -0.75% |
| 2007 | 1,305,988 | -5,180 | -0.40% |
| 2008 | 1,306,505 | 517 | 0.04% |
| 2009 | 1,310,747 | 4,242 | 0.32% |
| 2010 | 1,341,642 | 30,895 | 2.36% |
| 2011 | 1,346,207 | 4,565 | 0.34% |
| 2012 | 1,349,753 | 3,546 | 0.26% |
| 2013 | 1,352,355 | 2,602 | 0.19% |
| 2014 | 1,354,851 | 2,496 | 0.18% |
| 2015 | 1,354,987 | 136 | 0.01% |
| 2016 | 1,356,067 | 1,080 | 0.08% |
| 2017 | 1,357,260 | 1,193 | 0.09% |
| 2018 | 1,357,423 | 163 | 0.01% |
| 2019 | 1,356,073 | -1,350 | -0.10% |
| 2020 | 1,390,491 | 34,418 | 2.54% |
| 2021 | 1,391,809 | 1,318 | 0.09% |
| 2022 | 1,385,294 | -6,515 | -0.47% |
| 2023 | 1,381,715 | -3,579 | -0.26% |
TABLE OF CONTENTS
Nassau County, NY population from 2000 to 2023
From 2000 to 2010, Nassau County's population increased by 5,402 (0.40%), 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, Nassau County's population increased by 48,849 (3.64%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.18% .
After the COVID19 pandemic and, between the year 2020 and 2023, Nassau County's population decreased by 8,776 (0.63%).For the same period, the rate of growth for the United States was 1.02%.
FIGURE 1
Nassau County's population from 2000 to 2023.
The estimated population at the end of 2023 was 1.38 million.
Between the year 2000 and 2023, Nassau County's population peaked in year 2021 at 1.39 million.
Between the year 2000 and 2023, Nassau County's population was lowest in year 2007 at 1.31 million.
Nassau County, NY annual population growth rate
Between the years 2000 and 2023, i.e. 23 annual cycles, the population of Nassau County grew year by year for 14 years and declined for 9 years.
From 2000 to 2023, Nassau County had an average annual population growth rate of 0.15% per year. Overall the population grew 3.40% between 2000 and 2023.
FIGURE 2
Nassau County annual population growth rate
The average annual growth rate from 2000 to 2023 was 0.15% per year.
From 2019 to 2020 Nassau County population grew the most, with an increase of 34,418 people (a 2.54% year-on-year increase)..
From 2005 to 2006 Nassau County population experienced the most significant decrease, with a decline of 9,875 people (a 0.75% year-on-year decline).
Things to know
Is Nassau County, NY population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Nassau County's population decreased by 10,094 between 2021 and 2023. The decrease was 6,515 (increased) between 2021 and 2022; and decrease of 3,579 (0.26%) between 2022 and 2023.
How has the population of Nassau County, NY changed in the last 10 years?
Between 2013 and 2023, population of Nassau County increased by 29,360 (2.17%). The population was highest at 1.39 million in the year 2021 and lowest at 1.35 million in the year 2014. Overall the average growth rate witnessed for the last 10 years was 0.22%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)