• county
  • FIPS 48085
  • Largest town: Plano

Collin County, Texas

Collin County had 1,254,658 residents in the Census Vintage 2024 estimate, on 841.4 square miles of land. It ranks 6th of 254 in Texas by population and 186th by land area.

Population
1,254,658
#6 of 254 in Texas · #35 in US
Area
841.4 sq mi
#186 of 254 in Texas · #990 in US
Density
1,491 / sq mi
#5 of 254 in Texas · #108 in US
Median household income
$120,149
#1 of 254 in Texas · #40 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Collin County within Texas. Pin: Austin.

Measure from here

Tools and pages that start from Collin County

Collin County population, land area and income

Collin County had 1,254,658 residents in the Census Vintage 2024 estimate, on 841.4 square miles of land. It ranks 6th of 254 in Texas by population and 186th by land area. That works out to 1,491.2 people per square mile, 15.5 times the US average of 96.3, and in the top tenth nationally.

The median county-equivalent in Texas has 19,267 residents, so Collin County is 65.1 times that size.

Its SAIPE 2023 median household income of $120,149 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

1,254,658

3144th1st

35th of 3,144 (US)

Land area

841 sq mi

3144th1st

990th of 3,144 (US)

Density

1,491.2 / sq mi

3144th1st

108th of 3,144 (US)

Median household income

$120,149

3143rd1st

40th of 3,143 (US)

Rank within Texas (254)

Population

1,254,658

254th1st

6th of 254 (TX)

Land area

841 sq mi

254th1st

186th of 254 (TX)

Density

1,491.2 / sq mi

254th1st

5th of 254 (TX)

Median household income

$120,149

254th1st

1st of 254 (TX)

How Collin County's population changed since 2020

Collin County gained 179,007 residents between the July 2020 and July 2024 estimates, a rise of 16.6%. That ranks 15th of 254 in Texas for growth. The median Texas county changed by +2.1%, and the state as a whole by +7.0%.

Since the April 2020 estimates base, Collin County recorded 52,774 births and 25,320 deaths, a natural change of +27,454. Net international migration added +51,907 and net domestic migration, people moving to or from other US counties, came to +109,489. The largest single component was domestic migration, which added 109,489 people.

1.08M20201.11M20211.16M20221.21M20231.25M2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
52,774
Deaths
25,320
Net international migration
+51,907
Net domestic migration
+109,489
Change, July 2023 to July 2024
+46,694

Where Collin County is

The Census internal point of Collin County is at 33.194500, -96.579400. It sits in UTM zone 14N. The map shades Texas's 254 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Collin County outlined. Dots are towns of 1,000+ people with residents in it.

Cass County: +0.6%Jackson County: +1.9%Lipscomb County: -5.2%Hall County: +1.0%Hemphill County: -6.9%Kent County: -7.4%Dallam County: +5.4%Bandera County: +8.7%Culberson County: +3.1%Howard County: -11.4%Lavaca County: +1.2%Zavala County: -4.7%Taylor County: +3.7%Ellis County: +19.6%McLennan County: +3.5%Parker County: +20.2%Kinney County: +2.1%Uvalde County: +2.3%Haskell County: -0.0%Coke County: +2.3%Dickens County: -2.0%Colorado County: +4.0%Hansford County: -4.7%Collingsworth County: -1.2%Comanche County: +5.4%Crosby County: -1.3%Andrews County: +1.6%Atascosa County: +7.1%Brooks County: -5.0%Burnet County: +12.6%La Salle County: +0.4%Terry County: -1.6%Throckmorton County: +5.6%Yoakum County: -1.2%Hockley County: +0.0%Rockwall County: +25.5%Schleicher County: -5.8%Swisher County: -1.0%Motley County: -4.6%Hale County: -1.6%King County: -19.5%Hays County: +19.7%Irion County: +0.9%Bastrop County: +17.2%Blanco County: +16.6%Kimble County: +2.5%Dawson County: -5.7%Loving County: -28.4%Scurry County: -4.2%Sterling County: +0.2%Garza County: -20.1%Shackelford County: +1.9%Stonewall County: -0.8%Titus County: +0.8%Hopkins County: +5.3%Callahan County: +6.3%Childress County: +0.3%Lubbock County: +5.1%Dimmit County: -4.7%Donley County: -2.7%Baylor County: +2.1%Johnson County: +16.4%Glasscock County: +3.2%Sutton County: -2.6%Runnels County: -1.7%Ector County: +2.7%Kaufman County: +34.4%Jack County: +10.7%Mitchell County: -0.5%Falls County: +4.7%Castro County: +0.6%Palo Pinto County: +6.3%Limestone County: +1.9%Kerr County: +2.3%Franklin County: +5.2%Roberts County: +1.7%Young County: +2.2%Erath County: +4.2%Cochran County: +0.7%Hutchinson County: -4.2%Floyd County: -6.2%Mason County: +0.5%Parmer County: -1.9%Eastland County: +2.8%McMullen County: -5.4%Randall County: +6.5%Armstrong County: -2.3%Hamilton County: +4.8%Hartley County: -6.4%Nolan County: -3.7%Lynn County: +6.2%Menard County: -2.5%Karnes County: +2.2%Cottle County: -7.4%Winkler County: -4.8%Jeff Davis County: -10.4%Stephens County: +4.2%Bell County: +7.3%Borden County: -13.2%Madison County: +3.1%Fisher County: -0.3%Camp County: +5.9%Gillespie County: +5.2%Liberty County: +24.4%Upton County: -5.3%Waller County: +13.7%Fort Bend County: +15.6%Montgomery County: +19.9%Crockett County: -9.5%Sherman County: -0.7%Rusk County: +2.2%Wichita County: +0.3%Moore County: +2.8%Pecos County: -3.1%Webb County: +2.0%Kleberg County: -1.8%Fayette County: +4.0%Aransas County: +6.9%Presidio County: -6.9%Archer County: +7.0%Cherokee County: +5.2%Galveston County: +4.5%Comal County: +23.2%Concho County: +0.3%Jim Hogg County: -5.4%DeWitt County: +2.1%Brewster County: -0.6%Tarrant County: +5.4%Caldwell County: +14.1%Hardin County: +4.1%Fannin County: +7.4%Guadalupe County: +12.4%Clay County: +4.6%Coryell County: +3.9%Medina County: +8.9%Potter County: -3.1%Brown County: +1.5%Marion County: -1.7%Denton County: +14.3%Bee County: +0.6%Wise County: +17.9%Leon County: +5.8%Zapata County: -0.4%Coleman County: +4.0%Reagan County: -8.3%Mills County: +2.5%Reeves County: -19.0%Live Oak County: +5.5%Gaines County: +5.5%Oldham County: +3.4%Trinity County: +6.2%Williamson County: +18.2%San Saba County: -3.8%Wilson County: +10.7%Van Zandt County: +9.3%Lamar County: +2.2%Willacy County: -0.6%Brazos County: +6.4%Llano County: +8.7%Refugio County: -0.0%Martin County: -1.6%Midland County: +7.5%Wilbarger County: -3.0%Briscoe County: +5.1%Gonzales County: +1.8%Kenedy County: -5.7%Cameron County: +2.4%Gregg County: +1.9%Hidalgo County: +4.8%Hunt County: +18.4%Jefferson County: -0.9%Delta County: +8.1%Harris County: +5.8%Carson County: +0.5%Hill County: +7.8%Shelby County: +0.6%Hood County: +11.4%Grayson County: +10.6%Walker County: +9.4%McCulloch County: -1.8%Orange County: +1.6%Lee County: +5.4%Houston County: +0.6%San Jacinto County: +6.5%Robertson County: +5.3%Real County: +0.8%Red River County: +1.2%Sabine County: +1.7%Starr County: +1.1%Lamb County: -2.5%Goliad County: +2.8%El Paso County: +1.0%Wharton County: +1.1%Wheeler County: -3.1%Bexar County: +5.6%Lampasas County: +8.5%Calhoun County: -0.6%Maverick County: +1.7%Henderson County: +6.1%Freestone County: +6.2%Hardeman County: -4.0%Tom Green County: -0.1%Tyler County: +3.7%Chambers County: +19.5%Morris County: +1.8%Burleson County: +14.1%Newton County: -2.1%Upshur County: +7.3%Deaf Smith County: -0.2%Edwards County: -2.6%Bosque County: +4.2%Bowie County: -1.0%Matagorda County: +0.3%Terrell County: -4.3%Knox County: -2.9%Milam County: +5.6%Bailey County: +2.4%Nueces County: -0.1%Victoria County: +0.7%Dallas County: +1.7%Jones County: +5.9%Angelina County: +1.8%Washington County: +5.6%Gray County: -1.4%Grimes County: +13.6%Ochiltree County: -2.4%San Patricio County: +3.8%Val Verde County: +0.8%Foard County: -3.4%Frio County: +6.0%Kendall County: +16.3%Somervell County: +9.7%Panola County: +2.3%Nacogdoches County: +1.7%Ward County: -5.5%Wood County: +8.2%Montague County: +9.2%Duval County: -2.3%Navarro County: +6.9%Anderson County: +2.7%Jim Wells County: -0.0%Cooke County: +6.0%Rains County: +9.3%Austin County: +8.0%Brazoria County: +10.6%Polk County: +7.4%Travis County: +5.2%Collin County: +16.6%San Augustine County: -2.0%Harrison County: +3.7%Smith County: +6.4%Hudspeth County: +13.0%Crane County: -1.7%Jasper County: -0.0%
Change 2020 to 2024
  1. < -2.0%
  2. < +0.8%
  3. < +3.7%
  4. < +6.9%
  5. ≥ +6.9%
no data

Orange pin: Collin County internal point. Dark pin: Austin.

Internal point

Decimal
33.194500, -96.579400
DMS
33°11'40.20"N 96°34'45.84"W
UTM
14N 725652.0E 3675460.1N
Geohash
9vgkf6c5b
Plus code
86555CVC+R6

Towns in Collin County

27 incorporated places of 1,000+ people have residents in Collin County, 1,195,046 people together, or 95% of the county. Each figure counts only the part of the town inside Collin County; towns marked "part" extend into another county. The largest is Plano with 287,591.

  1. 01Plano (part)287,591
  2. 02McKinney227,526
  3. 03Frisco (part)139,707
  4. 04Allen113,746
  5. 05Wylie (part)59,712
  6. 06Dallas (part)54,194
  7. 07Celina (part)47,363
  8. 08Richardson (part)42,646
  9. 09Princeton37,019
  10. 10Prosper (part)35,355
  11. 11Anna31,986
  12. 12Melissa26,194
  13. 13Murphy21,109
  14. 14Sachse (part)12,263
  15. 15Fairview10,922
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Collin County

The Census 2024 county adjacency file lists 6 neighbors for Collin County. The most populous is Dallas County, TX, with 2,656,028 residents. Distances run between Census internal points in a straight line.

Distance to Austin and the nearest big city

Austin is 213.0 miles SSW of Collin County's internal point in a straight line. The nearest place of 100,000 or more is McKinney, TX (population 227,526), 4.9 miles away. The nearest place of 10,000 or more is Princeton, TX (population 37,019), 4.1 miles away.

Collin County FIPS code

The FIPS code of Collin County is 48085: state code 48 for Texas plus county code 085. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $120,149.

Questions people ask

What is the population of Collin County, Texas?

The Census Vintage 2024 estimate for July 1, 2024 is 1,254,658. That is up 179,007 people (16.6%) from the July 2020 estimate of 1,075,651.

What is the FIPS code of Collin County?

48085. The first two digits (48) are Texas; the last three (085) identify the county.

What is the largest town in Collin County?

Plano, with 287,591 residents inside Collin County in 2024 (293,286 across all 2 counties it spans).

Which counties border Collin County?

6 county-equivalents border it in the Census 2024 adjacency file: Dallas County, TX; Denton County, TX; Grayson County, TX; Rockwall County, TX; Hunt County, TX; Fannin County, TX.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.