# Los Angeles lost a net 81,742 people to other counties in one year

Published 2026-11-07 · By Pushbuild · Data: [US County Migration API – IRS Moves In and Out of Every County](https://pushbuild.com/apis/us-county-migration.html)

**81,742**Los Angeles lost a net · as of 2026-11-07

**In 2022-23, Los Angeles County lost 81,742 more people to other US counties than it gained, taking $4.1 billion in income with them.** Cook County (Chicago) lost 38,954 and $4.1 billion; Queens, Brooklyn and the Bronx together lost 107,772. Polk and Pasco counties in Florida gained the most.

## Biggest net losses

| County | Net people | Net income ($M) |
| --- | --- | --- |
| Los Angeles County, CA | -81,742 | -4,089 |
| Cook County, IL | -38,954 | -4,149 |
| Queens County, NY | -38,865 | -1,788 |
| Kings County, NY | -38,660 | -774 |
| Miami-Dade County, FL | -37,899 | 438 |
| Bronx County, NY | -30,247 | -982 |
| Dallas County, TX | -27,673 | -1,174 |
| Santa Clara County, CA | -20,508 | -2,659 |
| Orange County, CA | -19,551 | -524 |
| Harris County, TX | -19,118 | -1,199 |
| Philadelphia County, PA | -16,638 | -990 |
| Alameda County, CA | -15,760 | -1,147 |

## Biggest net gains

| County | Net people | Net income ($M) |
| --- | --- | --- |
| Polk County, FL | +19,407 | 598 |
| Pasco County, FL | +18,561 | 895 |
| Collin County, TX | +18,014 | 915 |
| Montgomery County, TX | +17,362 | 840 |
| Williamson County, TX | +14,769 | 997 |
| Denton County, TX | +14,119 | 1,207 |
| Pinal County, AZ | +14,108 | 590 |
| Lake County, FL | +11,522 | 619 |
| Clark County, NV | +11,396 | 1,246 |
| Riverside County, CA | +10,844 | 527 |
| St. Lucie County, FL | +10,451 | 488 |
| Fort Bend County, TX | +10,156 | 144 |

## Caveats

IRS tax-return addresses, 2022 to 2023 filing years, county-to-county flows the IRS publishes (small flows are not itemized). People are filers plus dependents. International moves are not counted.

## Sources

- [IRS Statistics of Income, migration data](https://www.irs.gov/statistics/soi-tax-stats-migration-data), read through the Pushbuild [US County Migration API](https://pushbuild.com/apis/us-county-migration.html) on 2026-11-07

Data as of 2026-11-07. Every figure in this post is in the table above and the CSV below.

Download the data behind this post: [b3-migration-top-net-loss-counties-2022-23.csv](https://pushbuild.com/apis/analysis/data/b3-migration-top-net-loss-counties-2022-23.csv) · [b3-migration-top-net-gain-counties-2022-23.csv](https://pushbuild.com/apis/analysis/data/b3-migration-top-net-gain-counties-2022-23.csv)

## Get this data

Every number in this post comes from the [US County Migration API – IRS Moves In and Out of Every County](https://pushbuild.com/apis/us-county-migration.html). $0.0008 per row returned; every key gets $1 of free usage each month.

```
curl -X POST https://api.pushbuild.com/us-county-migration/run \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"county": "Travis", "state": "TX", "maxItems": 20}'
```

[API docs and key](https://pushbuild.com/apis/us-county-migration.html)[More analysis from this data](https://pushbuild.com/apis/analysis/api/us-county-migration/)Embed this chart

Free to reuse with the credit link. Paste this HTML into your page, or use the [SVG file](https://pushbuild.com/apis/analysis/counties-losing-most-residents-irs-migration/chart.svg).

Want a table like this in Google Sheets, refreshed on demand? Free script: [copy a web table into Google Sheets](https://pushbuild.com/free/scripts/website-table-to-sheets/).

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Header photo: [Serg Bataiev servika](https://commons.wikimedia.org/wiki/File:Suburban_neighborhood_(Unsplash).jpg), CC0, via Wikimedia Commons.

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As of 2026-11-07. Source: https://pushbuild.com/apis/analysis/counties-losing-most-residents-irs-migration/