Net Domestic Migration:
Largest Counties in the United States:
2000-2005
| State | County | 2000 Census Population | Net Domestic Migration: 2000-2005 | Compared to 2000 Population | Core (1), Inner Suburb (2) Outer Suburb (3) |
| Massachusetts | Suffolk County | 689,807 | (102,023) | -14.79% | 1 |
| New York | Queens County | 2,229,379 | (283,573) | -12.72% | 1 |
| New Jersey | Hudson County | 608,975 | (76,172) | -12.51% | 2 |
| California | Santa Clara County | 1,682,585 | (201,499) | -11.98% | 2 |
| New York | Kings County | 2,465,326 | (291,748) | -11.83% | 1 |
| California | San Francisco County | 776,733 | (91,409) | -11.77% | 1 |
| Colorado | Denver County | 554,636 | (63,668) | -11.48% | 1 |
| California | San Mateo County | 707,161 | (72,802) | -10.29% | 2 |
| Georgia | DeKalb County | 665,865 | (64,393) | -9.67% | 2 |
| District of Columbia | District of Columbia | 572,059 | (53,550) | -9.36% | 1 |
| Texas | Dallas County | 2,218,899 | (207,389) | -9.35% | 1 |
| Illinois | Cook County | 5,376,741 | (500,099) | -9.30% | 1 |
| California | Alameda County | 1,443,741 | (132,607) | -9.18% | 2 |
| Minnesota | Ramsey County | 511,035 | (46,934) | -9.18% | 1 |
| New York | Bronx County | 1,332,650 | (119,310) | -8.95% | 1 |
| Maryland | Baltimore city | 651,154 | (55,893) | -8.58% | 1 |
| Ohio | Hamilton County | 845,303 | (65,516) | -7.75% | 1 |
| New Jersey | Essex County | 793,633 | (61,223) | -7.71% | 2 |
| Georgia | Fulton County | 816,006 | (62,914) | -7.71% | 1 |
| Pennsylvania | Philadelphia County | 1,517,550 | (113,844) | -7.50% | 1 |
| Florida | Miami-Dade County | 2,253,362 | (168,493) | -7.48% | 1 |
| Virginia | Fairfax County | 969,749 | (71,865) | -7.41% | 2 |
| New York | New York County | 1,537,195 | (112,667) | -7.33% | 1 |
| Michigan | Wayne County | 2,061,162 | (147,344) | -7.15% | 1 |
| Wisconsin | Milwaukee County | 940,164 | (65,081) | -6.92% | 1 |
| Minnesota | Hennepin County | 1,116,200 | (76,048) | -6.81% | 1 |
| Massachusetts | Middlesex County | 1,465,396 | (96,279) | -6.57% | 2 |
| Ohio | Cuyahoga County | 1,393,978 | (87,532) | -6.28% | 1 |
| California | Los Angeles County | 9,519,338 | (562,351) | -5.91% | 1 |
| New Jersey | Union County | 522,541 | (30,692) | -5.87% | 2 |
| Utah | Salt Lake County | 898,387 | (49,513) | -5.51% | 1 |
| Indiana | Marion County | 860,454 | (47,109) | -5.47% | 1 |
| Texas | El Paso County | 679,622 | (36,017) | -5.30% | 1 |
| New York | Westchester County | 923,459 | (47,704) | -5.17% | 2 |
| Tennessee | Davidson County | 569,891 | (28,751) | -5.04% | 1 |
| California | Orange County | 2,846,289 | (141,363) | -4.97% | 2 |
| Connecticut | Fairfield County | 882,567 | (41,408) | -4.69% | 1 |
| Illinois | DuPage County | 904,161 | (41,795) | -4.62% | 2 |
| Ohio | Franklin County | 1,068,978 | (47,319) | -4.43% | 1 |
| Maryland | Montgomery County | 873,341 | (38,228) | -4.38% | 2 |
| Ohio | Montgomery County | 559,062 | (23,582) | -4.22% | 1 |
| Oregon | Multnomah County | 660,486 | (27,796) | -4.21% | 1 |
| Colorado | Jefferson County | 527,056 | (21,241) | -4.03% | 2 |
| New Jersey | Middlesex County | 750,162 | (29,817) | -3.97% | 2 |
| Missouri | Jackson County | 654,880 | (25,695) | -3.92% | 1 |
| New Jersey | Bergen County | 884,118 | (34,423) | -3.89% | 2 |
| Oklahoma | Tulsa County | 563,299 | (21,774) | -3.87% | 1 |
| New York | Nassau County | 1,334,544 | (51,544) | -3.86% | 2 |
| Washington | King County | 1,737,034 | (66,789) | -3.85% | 1 |
| Pennsylvania | Allegheny County | 1,281,666 | (48,397) | -3.78% | 1 |
| Tennessee | Shelby County | 897,472 | (33,012) | -3.68% | 1 |
| Texas | Harris County | 3,400,578 | (122,915) | -3.61% | 1 |
| Missouri | St. Louis County | 1,016,315 | (35,437) | -3.49% | 2 |
| Massachusetts | Norfolk County | 650,308 | (22,660) | -3.48% | 2 |
| California | San Diego County | 2,813,833 | (97,536) | -3.47% | 1 |
| New York | Monroe County | 735,343 | (25,370) | -3.45% | 1 |
| Hawaii | Honolulu County | 876,156 | (29,510) | -3.37% | 1 |
| Alabama | Jefferson County | 662,047 | (21,642) | -3.27% | 1 |
| Michigan | Oakland County | 1,194,156 | (39,012) | -3.27% | 2 |
| New York | Erie County | 950,265 | (28,714) | -3.02% | 1 |
| Michigan | Kent County | 574,335 | (16,604) | -2.89% | 1 |
| Maryland | Prince George's County | 801,515 | (20,578) | -2.57% | 2 |
| Massachusetts | Essex County | 723,419 | (18,537) | -2.56% | 2 |
| Texas | Travis County | 812,280 | (19,073) | -2.35% | 1 |
| Oklahoma | Oklahoma County | 660,448 | (15,237) | -2.31% | 1 |
| Kentucky | Jefferson County | 693,604 | (15,442) | -2.23% | 1 |
| California | Ventura County | 753,197 | (14,251) | -1.89% | 3 |
| Pennsylvania | Delaware County | 550,864 | (8,507) | -1.54% | 2 |
| Rhode Island | Providence County | 621,602 | (9,585) | -1.54% | 1 |
| New Jersey | Camden County | 508,932 | (7,681) | -1.51% | 2 |
| Ohio | Summit County | 542,899 | (7,745) | -1.43% | 1 |
| Connecticut | Hartford County | 857,183 | (9,892) | -1.15% | 1 |
| Georgia | Cobb County | 607,751 | (5,098) | -0.84% | 3 |
| New York | Suffolk County | 1,419,369 | (11,349) | -0.80% | 3 |
| Connecticut | New Haven County | 824,008 | (5,669) | -0.69% | 3 |
| New Jersey | Monmouth County | 615,301 | (2,665) | -0.43% | 3 |
| Delaware | New Castle County | 500,265 | (1,043) | -0.21% | 3 |
| Massachusetts | Bristol County | 534,678 | 403 | 0.08% | 3 |
| Illinois | Lake County | 644,356 | 1,423 | 0.22% | 2 |
| Massachusetts | Worcester County | 750,963 | 2,850 | 0.38% | 2 |
| California | Fresno County | 799,407 | 4,303 | 0.54% | 1 |
| California | Contra Costa County | 948,816 | 7,146 | 0.75% | 2 |
| Pennsylvania | Montgomery County | 750,097 | 5,808 | 0.77% | 2 |
| Florida | Pinellas County | 921,482 | 7,297 | 0.79% | 1 |
| Pennsylvania | Bucks County | 597,635 | 8,542 | 1.43% | 3 |
| Florida | Duval County | 778,879 | 12,478 | 1.60% | 1 |
| Maryland | Baltimore County | 754,292 | 13,373 | 1.77% | 2 |
| Texas | Bexar County | 1,392,931 | 24,958 | 1.79% | 1 |
| Michigan | Macomb County | 788,149 | 14,398 | 1.83% | 2 |
| Colorado | El Paso County | 516,929 | 9,924 | 1.92% | 1 |
| Florida | Broward County | 1,623,018 | 36,632 | 2.26% | 2 |
| Texas | Tarrant County | 1,446,219 | 35,707 | 2.47% | 1 |
| Washington | Snohomish County | 606,024 | 15,748 | 2.60% | 2 |
| Texas | Hidalgo County | 569,463 | 14,913 | 2.62% | 1 |
| New Mexico | Bernalillo County | 556,678 | 14,797 | 2.66% | 1 |
| Washington | Pierce County | 700,820 | 19,524 | 2.79% | 2 |
| California | Sacramento County | 1,223,499 | 51,010 | 4.17% | 1 |
| Arizona | Pima County | 843,746 | 37,845 | 4.49% | 1 |
| North Carolina | Mecklenburg County | 695,454 | 35,986 | 5.17% | 1 |
| Florida | Orange County | 896,344 | 50,400 | 5.62% | 1 |
| California | Kern County | 661,645 | 41,461 | 6.27% | 1 |
| California | San Bernardino County | 1,709,434 | 120,496 | 7.05% | 3 |
| Florida | Hillsborough County | 998,948 | 73,235 | 7.33% | 1 |
| Florida | Palm Beach County | 1,131,184 | 90,812 | 8.03% | 3 |
| Arizona | Maricopa County | 3,072,149 | 259,869 | 8.46% | 1 |
| New Jersey | Ocean County | 510,916 | 43,472 | 8.51% | 3 |
| North Carolina | Wake County | 627,846 | 54,604 | 8.70% | 1 |
| California | San Joaquin County | 563,598 | 54,561 | 9.68% | 1 |
| Georgia | Gwinnett County | 588,448 | 59,847 | 10.17% | 3 |
| Nevada | Clark County | 1,375,765 | 219,112 | 15.93% | 1 |
| California | Riverside County | 1,545,387 | 292,038 | 18.90% | 3 |
| Illinois | Will County | 502,266 | 104,017 | 20.71% | 2 |
| Losing Counties | Gaining Counties | ||||
| Core (1) | (4,193,813) | 1,002,460 | (3,191,353) | ||
| Inner Suburbs (2) | (1,366,059) | 220,919 | (1,145,140) | ||
| Outer Suburbs (3) | (40,075) | 615,610 | 575,535 | ||
| Total | (5,599,947) | 1,838,989 | (3,760,958) | ||
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