Counties in Texas by population under 18

Loving County had the highest population under 18 of 254 counties in 2021, at 50.9%. Jeff Davis County had the lowest, at 12.5%. The median was 23.5% and the figure for Texas was 25%. Source: the U.S. Census Bureau.

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Highest50.9Loving County
Median23.5254 counties
Texas25History

Map of counties, 2021

Anderson County: 18.3 %Andrews County: 30.8 %Angelina County: 25 %Aransas County: 17.7 %Archer County: 23 %Armstrong County: 22.8 %Atascosa County: 27 %Austin County: 22.9 %Bailey County: 29.5 %Bandera County: 17.4 %Bastrop County: 24.9 %Baylor County: 23.4 %Bee County: 19.7 %Bell County: 26.9 %Bexar County: 24.7 %Blanco County: 17 %Borden County: 23.1 %Bosque County: 20.2 %Bowie County: 23.4 %Brazoria County: 25.9 %Brazos County: 20.3 %Brewster County: 17.5 %Briscoe County: 22 %Brooks County: 26 %Brown County: 21.2 %Burleson County: 22 %Burnet County: 20.5 %Caldwell County: 25 %Calhoun County: 23.1 %Callahan County: 22 %Cameron County: 28.6 %Camp County: 26.1 %Carson County: 24.3 %Cass County: 22.6 %Castro County: 28.6 %Chambers County: 27.8 %Cherokee County: 25 %Childress County: 19.4 %Clay County: 20.4 %Cochran County: 28.3 %Coke County: 19.5 %Coleman County: 19.8 %Collin County: 25.5 %Collingsworth County: 24.5 %Colorado County: 22.7 %Comal County: 21.8 %Comanche County: 22.3 %Concho County: 13.6 %Cooke County: 24 %Coryell County: 23.2 %Cottle County: 19.7 %Crane County: 28.4 %Crockett County: 23.5 %Crosby County: 26.3 %Culberson County: 22.3 %Dallam County: 30.4 %Dallas County: 24.7 %Dawson County: 24.8 %Deaf Smith County: 30.5 %Delta County: 22.6 %Denton County: 24.4 %DeWitt County: 22.5 %Dickens County: 22.2 %Dimmit County: 28 %Donley County: 19.6 %Duval County: 24.5 %Eastland County: 21.4 %Ector County: 28.9 %Edwards County: 21.6 %Ellis County: 26.6 %El Paso County: 25.5 %Erath County: 20.8 %Falls County: 20.9 %Fannin County: 21.1 %Fayette County: 20.6 %Fisher County: 22.7 %Floyd County: 26.8 %Foard County: 17 %Fort Bend County: 27.3 %Franklin County: 22.7 %Freestone County: 21.6 %Frio County: 25.9 %Gaines County: 35.1 %Galveston County: 23.6 %Garza County: 15.6 %Gillespie County: 18.3 %Glasscock County: 25.2 %Goliad County: 21.8 %Gonzales County: 26 %Gray County: 24.2 %Grayson County: 23.7 %Gregg County: 24.7 %Grimes County: 21.9 %Guadalupe County: 25 %Hale County: 25.7 %Hall County: 21.7 %Hamilton County: 21.2 %Hansford County: 28 %Hardeman County: 24.3 %Hardin County: 24.5 %Harris County: 25.6 %Harrison County: 24.1 %Hartley County: 20.8 %Haskell County: 19.7 %Hays County: 22.8 %Hemphill County: 27.3 %Henderson County: 21.1 %Hidalgo County: 30.4 %Hill County: 23.3 %Hockley County: 27 %Hood County: 20.1 %Hopkins County: 24.2 %Houston County: 19.7 %Howard County: 22.5 %Hudspeth County: 19.9 %Hunt County: 23.9 %Hutchinson County: 24.7 %Irion County: 22.3 %Jack County: 21.9 %Jackson County: 24.7 %Jasper County: 22.9 %Jeff Davis County: 12.5 %Jefferson County: 23.8 %Jim Hogg County: 28.1 %Jim Wells County: 26.8 %Johnson County: 25.6 %Jones County: 17.2 %Karnes County: 19.9 %Kaufman County: 28.8 %Kendall County: 22.8 %Kenedy County: 19.1 %Kent County: 21.2 %Kerr County: 18.2 %Kimble County: 17.9 %King County: 24.1 %Kinney County: 18.9 %Kleberg County: 23.5 %Knox County: 24.7 %Lamar County: 23.8 %Lamb County: 27 %Lampasas County: 21.7 %La Salle County: 21.4 %Lavaca County: 23 %Lee County: 23.7 %Leon County: 22 %Liberty County: 28.1 %Limestone County: 22.8 %Lipscomb County: 23.6 %Live Oak County: 18.7 %Llano County: 14.9 %Loving County: 50.9 %Lubbock County: 23.4 %Lynn County: 28.5 %McCulloch County: 20.9 %McLennan County: 24.1 %McMullen County: 20.7 %Madison County: 21.6 %Marion County: 16.9 %Martin County: 30.5 %Mason County: 18.6 %Matagorda County: 25.6 %Maverick County: 30.3 %Medina County: 23.1 %Menard County: 18.4 %Midland County: 28.6 %Milam County: 22.8 %Mills County: 20.6 %Mitchell County: 19.7 %Montague County: 22.6 %Montgomery County: 26 %Moore County: 30.1 %Morris County: 22.6 %Motley County: 21.4 %Nacogdoches County: 22.8 %Navarro County: 25.7 %Newton County: 20.6 %Nolan County: 25.4 %Nueces County: 23.8 %Ochiltree County: 29.6 %Oldham County: 27.3 %Orange County: 24.3 %Palo Pinto County: 23 %Panola County: 23.4 %Parker County: 24.7 %Parmer County: 28.6 %Pecos County: 24.5 %Polk County: 19.6 %Potter County: 25.4 %Presidio County: 25.3 %Rains County: 20.6 %Randall County: 24.1 %Reagan County: 28.4 %Real County: 18.6 %Red River County: 20.1 %Reeves County: 24.5 %Refugio County: 22 %Roberts County: 25.7 %Robertson County: 24.4 %Rockwall County: 26.9 %Runnels County: 23.4 %Rusk County: 22.3 %Sabine County: 18.6 %San Augustine County: 20.3 %San Jacinto County: 21.2 %San Patricio County: 25.5 %San Saba County: 19.3 %Schleicher County: 23.7 %Scurry County: 24.9 %Shackelford County: 23.4 %Shelby County: 25.2 %Sherman County: 29.2 %Smith County: 24.1 %Somervell County: 23.6 %Starr County: 30.7 %Stephens County: 21.2 %Sterling County: 26.7 %Stonewall County: 19.9 %Sutton County: 24.7 %Swisher County: 24.1 %Tarrant County: 25.3 %Taylor County: 24.1 %Terrell County: 18.1 %Terry County: 27.5 %Throckmorton County: 22.2 %Titus County: 27.9 %Tom Green County: 23.5 %Travis County: 20.8 %Trinity County: 19.7 %Tyler County: 20.1 %Upshur County: 24.8 %Upton County: 26.1 %Uvalde County: 26 %Val Verde County: 27.6 %Van Zandt County: 22.9 %Victoria County: 24.9 %Walker County: 14.6 %Waller County: 24 %Ward County: 27.8 %Washington County: 20.9 %Webb County: 30.8 %Wharton County: 25.1 %Wheeler County: 23.4 %Wichita County: 22.5 %Wilbarger County: 23 %Willacy County: 23.5 %Williamson County: 24.9 %Wilson County: 24.1 %Winkler County: 27.8 %Wise County: 24.6 %Wood County: 18.3 %Yoakum County: 31 %Young County: 23.5 %Zapata County: 31.5 %Zavala County: 29.8 %
  • Under 20
  • 20 to 22
  • 22 to 23
  • 23 to 25
  • 25 to 27
  • 27 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Loving County: 50.9 %Loving County50.9Gaines County: 35.1 %Gaines County35.1Zapata County: 31.5 %Zapata County31.5Yoakum County: 31 %Yoakum County31Andrews County: 30.8 %Andrews County30.8Webb County: 30.8 %Webb County30.8Starr County: 30.7 %Starr County30.7Martin County: 30.5 %Martin County30.5Deaf Smith County: 30.5 %Deaf Smith County30.5Dallam County: 30.4 %Dallam County30.4Hidalgo County: 30.4 %Hidalgo County30.4Maverick County: 30.3 %Maverick County30.3Moore County: 30.1 %Moore County30.1Zavala County: 29.8 %Zavala County29.8Ochiltree County: 29.6 %Ochiltree County29.6Bailey County: 29.5 %Bailey County29.5Sherman County: 29.2 %Sherman County29.2Ector County: 28.9 %Ector County28.9Kaufman County: 28.8 %Kaufman County28.8Castro County: 28.6 %Castro County28.6Parmer County: 28.6 %Parmer County28.6Midland County: 28.6 %Midland County28.6Cameron County: 28.6 %Cameron County28.6Lynn County: 28.5 %Lynn County28.5Reagan County: 28.4 %Reagan County28.4Crane County: 28.4 %Crane County28.4Cochran County: 28.3 %Cochran County28.3Jim Hogg County: 28.1 %Jim Hogg County28.1Liberty County: 28.1 %Liberty County28.1Hansford County: 28 %Hansford County28Dimmit County: 28 %Dimmit County28Titus County: 27.9 %Titus County27.9Ward County: 27.8 %Ward County27.8Chambers County: 27.8 %Chambers County27.8Winkler County: 27.8 %Winkler County27.8Val Verde County: 27.6 %Val Verde County27.6Terry County: 27.5 %Terry County27.5Hemphill County: 27.3 %Hemphill County27.3Oldham County: 27.3 %Oldham County27.3Fort Bend County: 27.3 %Fort Bend County27.3Loving County: 50.9 %Loving County50.9Gaines County: 35.1 %Gaines County35.1Zapata County: 31.5 %Zapata County31.5Yoakum County: 31 %Yoakum County31Andrews County: 30.8 %Andrews County30.8Webb County: 30.8 %Webb County30.8Starr County: 30.7 %Starr County30.7Martin County: 30.5 %Martin County30.5Deaf Smith County: 30.5 %Deaf Smith County30.5Dallam County: 30.4 %Dallam County30.4Hidalgo County: 30.4 %Hidalgo County30.4Maverick County: 30.3 %Maverick County30.3Moore County: 30.1 %Moore County30.1Zavala County: 29.8 %Zavala County29.8Ochiltree County: 29.6 %Ochiltree County29.6Bailey County: 29.5 %Bailey County29.5Sherman County: 29.2 %Sherman County29.2Ector County: 28.9 %Ector County28.9Kaufman County: 28.8 %Kaufman County28.8Castro County: 28.6 %Castro County28.6Parmer County: 28.6 %Parmer County28.6Midland County: 28.6 %Midland County28.6Cameron County: 28.6 %Cameron County28.6Lynn County: 28.5 %Lynn County28.5Reagan County: 28.4 %Reagan County28.4Crane County: 28.4 %Crane County28.4Cochran County: 28.3 %Cochran County28.3Jim Hogg County: 28.1 %Jim Hogg County28.1Liberty County: 28.1 %Liberty County28.1Hansford County: 28 %Hansford County28Dimmit County: 28 %Dimmit County28Titus County: 27.9 %Titus County27.9Ward County: 27.8 %Ward County27.8Chambers County: 27.8 %Chambers County27.8Winkler County: 27.8 %Winkler County27.8Val Verde County: 27.6 %Val Verde County27.6Terry County: 27.5 %Terry County27.5Hemphill County: 27.3 %Hemphill County27.3Oldham County: 27.3 %Oldham County27.3Fort Bend County: 27.3 %Fort Bend County27.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Loving County50.9+6.4 pts
2Gaines County35.1-0.2 pts
3Zapata County31.5-0 pts
4Yoakum County31-0.1 pts
5Andrews County30.8-0.2 pts
6Webb County30.8-0.6 pts
7Starr County30.7-0.3 pts
8Martin County30.5+0.3 pts
9Deaf Smith County30.5-0.2 pts
10Dallam County30.4+0.4 pts
11Hidalgo County30.4-0.5 pts
12Maverick County30.3-0.1 pts
13Moore County30.1-0.3 pts
14Zavala County29.8+0.2 pts
15Ochiltree County29.6-0.4 pts
16Bailey County29.5+0.1 pts
17Sherman County29.2+0.2 pts
18Ector County28.9-0.1 pts
19Kaufman County28.8+0.1 pts
20Castro County28.6+0.4 pts
21Parmer County28.60 pts
22Midland County28.6+0.1 pts
23Cameron County28.6-0.6 pts
24Lynn County28.5-0.1 pts
25Reagan County28.4-0.7 pts
26Crane County28.40 pts
27Cochran County28.3-0.4 pts
28Jim Hogg County28.1+0.2 pts
29Liberty County28.1+0.9 pts
30Hansford County28-0.9 pts
31Dimmit County28+0.2 pts
32Titus County27.9-0.3 pts
33Ward County27.8-0.4 pts
34Chambers County27.8-0.4 pts
35Winkler County27.8-0.5 pts
36Val Verde County27.60 pts
37Terry County27.5-0.1 pts
38Hemphill County27.3-1.5 pts
39Oldham County27.3-1.9 pts
40Fort Bend County27.3-0.4 pts
41Lamb County270 pts
42Atascosa County27-0.1 pts
43Hockley County27+0.4 pts
44Rockwall County26.9-0.2 pts
45Bell County26.9-0.1 pts
46Jim Wells County26.8-0.1 pts
47Floyd County26.8+0.1 pts
48Sterling County26.7+1.4 pts
49Ellis County26.6-0.1 pts
50Crosby County26.3+0.4 pts
51Camp County26.1+0.1 pts
52Upton County26.1-0.5 pts
53Uvalde County26+0.1 pts
54Brooks County26-0 pts
55Montgomery County26-0.3 pts
56Gonzales County26-0.4 pts
57Brazoria County25.9-0.2 pts
58Frio County25.9+0.5 pts
59Navarro County25.7+0.1 pts
60Hale County25.7-0.3 pts
61Roberts County25.7+0.3 pts
62Harris County25.6-0.3 pts
63Matagorda County25.60 pts
64Johnson County25.6-0.1 pts
65El Paso County25.5-0.4 pts
66San Patricio County25.5-0 pts
67Collin County25.5-0.5 pts
68Potter County25.4-0.3 pts
69Nolan County25.4-0.1 pts
70Tarrant County25.3-0.3 pts
71Presidio County25.3-0.3 pts
72Shelby County25.2-0.2 pts
73Glasscock County25.2+0.1 pts
74Wharton County25.1-0.3 pts
75Caldwell County25-0.3 pts
76Cherokee County25-0.2 pts
77Guadalupe County25-0.5 pts
78Angelina County25-0.1 pts
79Scurry County24.9-0.3 pts
80Williamson County24.9-0.5 pts
81Victoria County24.9-0.1 pts
82Bastrop County24.9+0.1 pts
83Dawson County24.8+0.2 pts
84Upshur County24.80 pts
85Dallas County24.7-0.4 pts
86Bexar County24.7-0.3 pts
86Knox County24.7+0.1 pts
88Sutton County24.7+0.5 pts
89Gregg County24.7-0 pts
90Parker County24.7-0.1 pts
91Hutchinson County24.7-0.3 pts
92Jackson County24.7+0.2 pts
93Wise County24.6-0 pts
94Pecos County24.5-0.1 pts
95Collingsworth County24.5-0.6 pts
96Reeves County24.5+2.5 pts
97Duval County24.5-0.8 pts
98Hardin County24.5+0.1 pts
99Denton County24.4-0.5 pts
100Robertson County24.4+0.1 pts
101Hardeman County24.3+0.9 pts
102Carson County24.3+0.2 pts
103Orange County24.3+0.1 pts
104Hopkins County24.2-0.2 pts
105Gray County24.2-0.3 pts
106McLennan County24.1-0.3 pts
107King County24.1+0.9 pts
108Harrison County24.1-0.4 pts
109Swisher County24.1-0.5 pts
110Taylor County24.1-0.3 pts
111Randall County24.1-0 pts
112Wilson County24.1-0.2 pts
113Smith County24.1-0.2 pts
114Waller County24-0.2 pts
115Cooke County24-0.3 pts
116Hunt County23.9+0.2 pts
117Jefferson County23.8-0.1 pts
118Nueces County23.8-0.2 pts
119Lamar County23.8+0.2 pts
120Lee County23.7-0.7 pts
121Grayson County23.7-0 pts
122Schleicher County23.7+0.3 pts
123Somervell County23.6+0.1 pts
124Galveston County23.6-0.3 pts
125Lipscomb County23.6-0.7 pts
126Kleberg County23.5-0.1 pts
127Tom Green County23.5-0.2 pts
128Willacy County23.5-0.2 pts
129Young County23.50 pts
130Crockett County23.5-0.1 pts
131Bowie County23.40 pts
132Baylor County23.4-0.5 pts
133Runnels County23.4-0.2 pts
134Wheeler County23.4-0.5 pts
135Lubbock County23.4-0.3 pts
136Panola County23.4-0.3 pts
137Shackelford County23.4-0.1 pts
138Hill County23.3-0.1 pts
139Coryell County23.2-0.5 pts
140Borden County23.1+0.7 pts
140Medina County23.1-0.3 pts
142Calhoun County23.1-0.5 pts
143Palo Pinto County23+0.1 pts
144Archer County23+0.1 pts
145Lavaca County23+0.1 pts
146Wilbarger County23-0.1 pts
147Jasper County22.9+0.1 pts
148Austin County22.9-0.4 pts
149Van Zandt County22.9-0 pts
150Hays County22.8-0.2 pts
151Milam County22.8-0.3 pts
152Kendall County22.8-0.2 pts
153Armstrong County22.8-0.4 pts
154Nacogdoches County22.8-0.1 pts
155Limestone County22.8-0.3 pts
156Fisher County22.7+0.6 pts
157Franklin County22.7+0.1 pts
158Colorado County22.7+0.2 pts
159Cass County22.6+0.3 pts
160Delta County22.6+0.7 pts
161Montague County22.6+0.3 pts
162Morris County22.6-0.1 pts
163Howard County22.5-0.6 pts
164DeWitt County22.5-0.1 pts
165Wichita County22.5-0 pts
166Irion County22.3+1.3 pts
167Comanche County22.3-0.1 pts
168Rusk County22.3+0.1 pts
169Culberson County22.3+0.3 pts
170Throckmorton County22.2+1 pts
171Dickens County22.2-0.3 pts
172Callahan County22+0.2 pts
173Refugio County22-0 pts
174Briscoe County22+0.3 pts
175Burleson County22+0.2 pts
176Leon County22+0.2 pts
177Grimes County21.9+0.3 pts
178Jack County21.9+0.2 pts
179Comal County21.8-0.2 pts
180Goliad County21.8+0.1 pts
181Hall County21.7+1 pts
182Lampasas County21.7-0.2 pts
183Madison County21.6+0.5 pts
184Freestone County21.6-0.4 pts
185Edwards County21.6-0.1 pts
186Eastland County21.4+0.3 pts
187La Salle County21.4-0.1 pts
188Motley County21.4-1.3 pts
189Kent County21.2-0.1 pts
190San Jacinto County21.2-0.5 pts
191Brown County21.2-0.3 pts
192Stephens County21.2-0.8 pts
193Hamilton County21.2-0.1 pts
194Fannin County21.1-0 pts
195Henderson County21.10 pts
196Washington County20.9-0.2 pts
197McCulloch County20.9-0.1 pts
198Falls County20.9-0 pts
199Travis County20.8-0.5 pts
200Hartley County20.8-0.5 pts
201Erath County20.8-0.1 pts
202McMullen County20.7+1.1 pts
203Mills County20.6+0.2 pts
204Rains County20.6-0 pts
205Newton County20.6-0.1 pts
206Fayette County20.6-0.2 pts
207Burnet County20.5-0.4 pts
208Clay County20.40 pts
209Brazos County20.3-0.2 pts
210San Augustine County20.3-0.2 pts
211Bosque County20.2-0.6 pts
212Hood County20.1-0.2 pts
213Red River County20.1+0.1 pts
214Tyler County20.1+0.2 pts
215Karnes County19.9-0.5 pts
216Hudspeth County19.9+0.8 pts
217Stonewall County19.9-0.4 pts
218Coleman County19.8-0.4 pts
219Bee County19.7-0.3 pts
220Mitchell County19.70 pts
221Trinity County19.7-0.1 pts
222Haskell County19.7+0.2 pts
222Houston County19.7+0.3 pts
224Cottle County19.7-0.8 pts
225Donley County19.6-0.5 pts
226Polk County19.6+0.2 pts
227Coke County19.5-0.2 pts
228Childress County19.4-0.7 pts
229San Saba County19.3-0.4 pts
230Kenedy County19.1-0.7 pts
231Kinney County18.9+0.1 pts
232Live Oak County18.7-0.3 pts
233Mason County18.6-0.7 pts
234Real County18.6-0.3 pts
235Sabine County18.6-0.1 pts
236Menard County18.40 pts
237Anderson County18.3-0.3 pts
238Gillespie County18.3-0.1 pts
239Wood County18.3-0.4 pts
240Kerr County18.2-0 pts
241Terrell County18.1+0.9 pts
242Kimble County17.9+0.1 pts
243Aransas County17.7+0.1 pts
244Brewster County17.5-0.5 pts
245Bandera County17.4+0.1 pts
246Jones County17.2-0.5 pts
247Foard County17+0.1 pts
248Blanco County17-0.1 pts
249Marion County16.9-0.6 pts
250Garza County15.6-2 pts

Showing the top 250 of 254. The Excel download has every row.

Other periods

About this ranking

Residents aged 0 to 17 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Uses the US age of majority. Not comparable with population_0_14_share, which stops at 14.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Texas by population under 18, 2021) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Texas by population under 18, 2021. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-under-18/texas-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Texas by population under 18, 2021. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-under-18/texas-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Texas by population under 18, 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/texas-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_texas_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Texas by population under 18, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-under-18/texas-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Texas by population under 18, 2021
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-under-18/texas-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/texas-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  - 
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Rank Counties in Texas by population under 18 using official data, and cite the source.
rank_places {"indicator":"population_0_17_share","level":"province","within":"Texas","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_0_17_share&level=province&within=Texas&limit=10

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Questions

Which county has the highest population under 18?

Loving County, with 50.9% in 2021, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Jeff Davis County, with 12.5% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population under 18: other rankings

Counties in Texas: more rankings