While you had your eye on San Francisco, Phoenix was sending former residents to Portland in droves.

The Portland metro area grew from 2.2 million in 2011 to nearly 2.4 million in 2015, and most of that growth comes from people moving to the region from elsewhere.

Portland trades residents with many large and small cities, but some have far more people moving to Portland than the other way around. (California, of course, is well represented.)

Here at the 25 out-of-state counties sending the most residents to the Portland metro in net between 2011 and 2015, according to census data.

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1. Maricopa County, Arizona

Largest city: Phoenix

Net new Portlanders: 1,251

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AFP/Getty Images

2. Los Angeles County, California

Largest city: Los Angeles

Net new Portlanders: 1,131

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3. Middlesex County, Massachusetts

Largest city: Lowell

Net new Portlanders: 584

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AP Photo/Mike Stewart

4. Fulton County, Georgia

Largest city: Atlanta

Net new Portlanders: 584

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5. Santa Clara County, California

Largest city: San Jose

Net new Portlanders: 491

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6. Contra Costa County, California

Largest city: Concord

Net new Portlanders: 477

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7. Riverside County, California

Largest city: Riverside

Net new Portlanders: 447

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JOE KLAMAR/AFP/Getty Images

8. Ventura County, California

Largest city: Oxnard

Net new Portlanders: 438

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By JSquish - Own work, CC BY-SA 3.0, Link

9. Ada County, Idaho

Largest city: Boise

Net new Portlanders: 424

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10. San Francisco County, California

Only city: San Francisco

Net new Portlanders: 387

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11. Dallas County, Texas

Largest city: Dallas

Net new Portlanders: 350

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AP Photo/Dan Joling

12. Anchorage Municipality, Alaska

Largest city: Anchorage

Net new Portlanders: 319

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AP Photo/Alex Brandon

13. District of Columbia

Only city: Washington, D.C.

Net new Portlanders: 314

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AP Photo/LM Otero

14. Collin County, Texas

Largest city: Plano

Net new Portlanders: 274

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AP Photo/Denis Poroy

15. San Diego County, California

Largest city: San Diego

Net new Portlanders: 271

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16. Sacramento County, California

Largest city: Sacramento

Net new Portlanders: 267

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17. San Mateo County, California

Largest city: Daly City

Net new Portlanders: 251

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Terry Richard/Staff

18. Cowlitz County, Washington

Largest city: Longview

Net new Portlanders: 249

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AP Photo/Jay LaPrete

19. Franklin County, Ohio

Largest city: Columbus

Net new Portlanders: 248

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20. Monterey County, California

Largest city: Salinas

Net new Portlanders: 248

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AP Photo/Scott Sonner

21. Washoe County, Nevada

Largest city: Reno

Net new Portlanders: 243

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AP Photo/The Seattle Times, Bettina Hansen

22. Island County, Washington

Largest city: Oak Harbor

Net new Portlanders: 240

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AP Photo/Caleb Jones

23. Honolulu County, Hawaii

Only city: Honolulu

Net new Portlanders: 239

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AP Photo/G-Jun Yam

24. Cook County, Illinois

Largest city: Chicago

Net new Portlanders: 239

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AP Photo/Jeff T. Green

25. Spokane County, Washington

Largest city: Spokane

Net new Portlanders: 233

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Where are ex-Portlanders moving?

Check out our list of 10 counties to which Portland is losing the most residents.

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-- Elliot Njus

enjus@oregonian.com

503-294-5034

@enjus