Mercer County, NJ population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of Mercer County increased by 30,083. In this period, the peak population was 386,466 in the year 2020. 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 | 351,588 | - | - |
| 2001 | 354,244 | 2,656 | 0.76% |
| 2002 | 356,637 | 2,393 | 0.68% |
| 2003 | 359,674 | 3,037 | 0.85% |
| 2004 | 362,440 | 2,766 | 0.77% |
| 2005 | 363,386 | 946 | 0.26% |
| 2006 | 364,391 | 1,005 | 0.28% |
| 2007 | 364,925 | 534 | 0.15% |
| 2008 | 366,118 | 1,193 | 0.33% |
| 2009 | 367,446 | 1,328 | 0.36% |
| 2010 | 367,717 | 271 | 0.07% |
| 2011 | 367,407 | -310 | -0.08% |
| 2012 | 368,628 | 1,221 | 0.33% |
| 2013 | 369,534 | 906 | 0.25% |
| 2014 | 369,031 | -503 | -0.14% |
| 2015 | 368,266 | -765 | -0.21% |
| 2016 | 367,929 | -337 | -0.09% |
| 2017 | 368,489 | 560 | 0.15% |
| 2018 | 368,720 | 231 | 0.06% |
| 2019 | 368,047 | -673 | -0.18% |
| 2020 | 386,466 | 18,419 | 5.00% |
| 2021 | 382,172 | -4,294 | -1.11% |
| 2022 | 380,779 | -1,393 | -0.36% |
| 2023 | 381,671 | 892 | 0.23% |
TABLE OF CONTENTS
Mercer County, NJ population from 2000 to 2023
From 2000 to 2010, Mercer County's population increased by 16,129 (4.59%), 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, Mercer County's population increased by 18,749 (5.10%), 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, Mercer County's population decreased by 4,795 (1.24%).For the same period, the rate of growth for the United States was 1.02%.
FIGURE 1
Mercer County's population from 2000 to 2023.
The estimated population at the end of 2023 was 381,671.
Between the year 2000 and 2023, Mercer County's population peaked in year 2020 at 386,466.
Between the year 2000 and 2023, Mercer County's population was lowest in year 2000 at 351,588.
Mercer County, NJ annual population growth rate
Between the years 2000 and 2023, i.e. 23 annual cycles, the population of Mercer County grew year by year for 16 years and declined for 7 years.
From 2000 to 2023, Mercer County had an average annual population growth rate of 0.37% per year. Overall the population grew 8.56% between 2000 and 2023.
FIGURE 2
Mercer County annual population growth rate
The average annual growth rate from 2000 to 2023 was 0.37% per year.
From 2019 to 2020 Mercer County population grew the most, with an increase of 18,419 people (a 5% year-on-year increase)..
From 2020 to 2021 Mercer County population experienced the most significant decrease, with a decline of 4,294 people (a 1.11% year-on-year decline).
Things to know
Is Mercer County, NJ population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Mercer County's population decreased by 501 between 2021 and 2023. The decrease was 1,393 (increased) between 2021 and 2022; and increase of 892 (0.23%) between 2022 and 2023.
How has the population of Mercer County, NJ changed in the last 10 years?
Between 2013 and 2023, population of Mercer County increased by 12,137 (3.28%). The population was highest at 386,466 in the year 2020 and lowest at 367,929 in the year 2016. Overall the average growth rate witnessed for the last 10 years was 0.34%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)