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Source: U.S. Census Bureau, Population Estimates Program, Vintage 2024 — figures cover the April 1, 2020 estimates base through July 1, 2024
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U.S. Census Bureau · Vintage 2024

Marin County, California: 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.

Values are printed as the U.S. Census Bureau reports them. A blank source value is printed as “not available”.
Marin County
ItemValueAs reported
CountyMarin CountyMarin County
StateCaliforniaCalifornia
State FIPS code0606
County FIPS code041041
Census region (code)44
Census division (code)99
Estimates base, April 1, 2020262,325262325
Resident population, July 1, 2020261,341261341
Resident population, July 1, 2021259,254259254
Resident population, July 1, 2022257,143257143
Resident population, July 1, 2023255,706255706
Resident population, July 1, 2024256,400256400
Numeric population change, 2023 to 2024694694
Births, year to July 1, 20242,0972097
Deaths, year to July 1, 20242,1702170
Natural change (births minus deaths), year to July 1, 2024-73-73
International migration, year to July 1, 20242,2632263
Domestic migration, year to July 1, 2024-1,505-1505
Residual, year to July 1, 202499
Birth rate per 1,000 population, year to July 1, 20248.18978.189710724
Death rate per 1,000 population, year to July 1, 20248.47488.4748079499
Natural change rate per 1,000 population, year to July 1, 2024-0.2851-0.285097226
International migration rate per 1,000 population, year to July 1, 20248.83808.8380140049
Domestic migration rate per 1,000 population, year to July 1, 2024-5.8777-5.877689385
Group quarters population, July 1, 20247,3127312

Values as reported by the source: county_name=Marin County, state_name=California, state_fips=06, county_fips=041, region=4, division=9, estimates_base_2020=262325, pop_2020=261341, pop_2021=259254, pop_2022=257143, pop_2023=255706, pop_2024=256400, npopchg_2024=694, births_2024=2097, deaths_2024=2170, naturalchg_2024=-73, internationalmig_2024=2263, domesticmig_2024=-1505, residual_2024=9, rbirth_2024=8.189710724, rdeath_2024=8.4748079499, rnaturalchg_2024=-0.285097226, rinternationalmig_2024=8.8380140049, rdomesticmig_2024=-5.877689385, gq_estimates_2024=7312