Mercer County, New Jersey: population and components of change
Source: U.S. Census Bureau, Population Estimates Program, Vintage 2024: County Population Totals and Components of Change 2020-2024 (CO-EST2024-ALLDATA). Figures cover the April 1, 2020 estimates base through July 1, 2024; data fetched 2026-10-30T08:41:21Z.
| Item | Value | As reported |
|---|---|---|
| County | Mercer County | Mercer County |
| State | New Jersey | New Jersey |
| State FIPS code | 34 | 34 |
| County FIPS code | 021 | 021 |
| Census region (code) | 1 | 1 |
| Census division (code) | 2 | 2 |
| Estimates base, April 1, 2020 | 387,333 | 387333 |
| Resident population, July 1, 2020 | 386,492 | 386492 |
| Resident population, July 1, 2021 | 382,231 | 382231 |
| Resident population, July 1, 2022 | 382,165 | 382165 |
| Resident population, July 1, 2023 | 386,296 | 386296 |
| Resident population, July 1, 2024 | 392,138 | 392138 |
| Numeric population change, 2023 to 2024 | 5,842 | 5842 |
| Births, year to July 1, 2024 | 4,245 | 4245 |
| Deaths, year to July 1, 2024 | 3,060 | 3060 |
| Natural change (births minus deaths), year to July 1, 2024 | 1,185 | 1185 |
| International migration, year to July 1, 2024 | 7,344 | 7344 |
| Domestic migration, year to July 1, 2024 | -2,719 | -2719 |
| Residual, year to July 1, 2024 | 32 | 32 |
| Birth rate per 1,000 population, year to July 1, 2024 | 10.9065 | 10.906512305 |
| Death rate per 1,000 population, year to July 1, 2024 | 7.8619 | 7.861938199 |
| Natural change rate per 1,000 population, year to July 1, 2024 | 3.0446 | 3.0445741065 |
| International migration rate per 1,000 population, year to July 1, 2024 | 18.8687 | 18.868651678 |
| Domestic migration rate per 1,000 population, year to July 1, 2024 | -6.9858 | -6.985820249 |
| Group quarters population, July 1, 2024 | 15,038 | 15038 |
Values as reported by the source: county_name=Mercer County, state_name=New Jersey, state_fips=34, county_fips=021, region=1, division=2, estimates_base_2020=387333, pop_2020=386492, pop_2021=382231, pop_2022=382165, pop_2023=386296, pop_2024=392138, npopchg_2024=5842, births_2024=4245, deaths_2024=3060, naturalchg_2024=1185, internationalmig_2024=7344, domesticmig_2024=-2719, residual_2024=32, rbirth_2024=10.906512305, rdeath_2024=7.861938199, rnaturalchg_2024=3.0445741065, rinternationalmig_2024=18.868651678, rdomesticmig_2024=-6.985820249, gq_estimates_2024=15038