See how the largest U.S. county grew and dwindled in population

Several metropolitan county The U.S. as a whole gained residents in the fiscal year ended last July after losing residents in the previous 12 months amid the COVID-19 pandemic, according to U.S. Census Bureau population estimates released Thursday. Did you stop the population decline?

Demographic change is driven both by migration within the United States, where people move within the country, and by international trends, where people arrive from abroad. It also depends on whether births outnumber deaths or vice versa.

Let’s take a look at what caused the population changes in the top 10 counties in the United States from July 1, 2021 to July 1, 2022.

Los Angeles County, California – The nation’s most populous county lost more than 90,000 residents last year and now has a population of 9.7 million. Los Angeles County gained nearly 34,000 residents from abroad, and 18,000 more births than deaths. But it wasn’t enough to offset the approximately 143,000 residents who moved to another county. Losses due to Angelenos moving to another location decreased by 20% from the previous year.

Cook County, Illinois — Chicago, the second-largest county in the United States, lost more than 68,000 residents last year. Residents of the Windy City and neighboring communities have moved to match the 94,000 residents. Unlike other major urban counties, Cook County’s population decline due to immigration was not much smaller than in the previous year. It was the fifth most popular destination for those arriving from other countries. The county had 5.1 million residents last July.

Harris County, Texas — The county of 4.7 million residents that surrounds Houston recorded the second-largest population growth in the nation with 45,000 new residents, although 20,000 residents left elsewhere . This increase is underpinned by one of the highest levels of international migration and natural growth in the country.

Maricopa County, Arizona — Phoenix’s home county had the biggest immigration boom in the country. Combined with strong international migration and natural growth, Maricopa County has added about 57,000 new residents and now has a population of 4.5 million.

San Diego County, California — San Diego County gained only 1,254 new residents, a reversal from a loss of 11,000 a year ago. In addition to declining births, there has been a high level of immigration from abroad, with births outnumbering deaths, bringing the county’s population to approximately 3.2 million.

ORANGE COUNTY, CALIFORNIA — The coastal county south of Los Angeles, home of Anaheim and Disneyland, has lost nearly 10,000 residents, but a surge in international immigration has resulted in fewer than in the previous 12 months. Decrease is smaller. Population he was 3.1 million.

MIAMI-DADE COUNTY, FL — The county gained only 3,416 new residents last year, a turnaround from a population decline of about 30,000 a year ago. Miami-Dade continued to bleed residents, but the losses were overcome by the nation’s largest influx of international immigrants. It had about 2.7 million inhabitants.

Dallas County, Texas — This county of 2.6 million people gained nearly 13,000 new residents after nearly doubling its number in the previous period. Stable international migration and a birth rate exceeding the death rate have allowed the country to overcome an exodus of 20,000 inhabitants.

KINGS COUNTY, New York — About 47,000 people died in counties including Brooklyn, about half the decrease from the previous period. With 2.5 million residents, the county has experienced strong natural growth and a significant amount of international migration, but over 77,000 residents have left.

Riverside County, California — Southern California county, part of the Inland Empire, gained over 20,000 residents last year and now has 2.4 million. Most of the growth is due to internal migration.