Data / Rankings / Population under 18 / Counties in Texas

Counties in Texas by population under 18, 2025

Gaines County had the highest population under 18 of 254 counties in 2025, at 36%. Concho County had the lowest, at 11.2%. The median was 22.8% and the figure for Texas was 24%. Source: the U.S. Census Bureau.

Highest36Gaines County
Lowest11.2Concho County
Median22.8254 counties
Texas24History

Top 40 counties, 2025

Gaines County: 36 %Gaines County36Dallam County: 32.9 %Dallam County32.9Yoakum County: 31.9 %Yoakum County31.9Bailey County: 31 %Bailey County31Loving County: 30.8 %Loving County30.8Andrews County: 30.4 %Andrews County30.4Moore County: 30.3 %Moore County30.3Deaf Smith County: 29.8 %Deaf Smith County29.8Maverick County: 29.8 %Maverick County29.8Liberty County: 29.6 %Liberty County29.6Starr County: 29.5 %Starr County29.5Martin County: 29.3 %Martin County29.3Lynn County: 29.1 %Lynn County29.1Kaufman County: 29 %Kaufman County29Zavala County: 29 %Zavala County29Crane County: 29 %Crane County29Ector County: 29 %Ector County29Midland County: 28.9 %Midland County28.9Webb County: 28.9 %Webb County28.9Zapata County: 28.8 %Zapata County28.8Hidalgo County: 28.5 %Hidalgo County28.5Terry County: 28.4 %Terry County28.4Cochran County: 28.3 %Cochran County28.3Ward County: 28.1 %Ward County28.1Castro County: 28 %Castro County28Sherman County: 27.8 %Sherman County27.8Parmer County: 27.8 %Parmer County27.8Ochiltree County: 27.3 %Ochiltree County27.3Winkler County: 27.3 %Winkler County27.3Hansford County: 27.2 %Hansford County27.2Reagan County: 27.2 %Reagan County27.2Dimmit County: 27 %Dimmit County27Chambers County: 26.9 %Chambers County26.9Sterling County: 26.8 %Sterling County26.8Cameron County: 26.6 %Cameron County26.6Uvalde County: 26.6 %Uvalde County26.6Val Verde County: 26.6 %Val Verde County26.6Hockley County: 26.3 %Hockley County26.3Titus County: 26.2 %Titus County26.2Reeves County: 26.2 %Reeves County26.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2025 (%)Change on 2024
1Gaines County36+0.4 pts
2Dallam County32.9-0.3 pts
3Yoakum County31.9+0.2 pts
4Bailey County31+0.8 pts
5Loving County30.8-5.4 pts
6Andrews County30.4-0.3 pts
7Moore County30.3-0.1 pts
8Deaf Smith County29.8-0.1 pts
9Maverick County29.8-0.1 pts
10Liberty County29.6+0.1 pts
11Starr County29.5-0.3 pts
12Martin County29.3-0.2 pts
13Lynn County29.10 pts
14Kaufman County29-0.1 pts
15Zavala County29-0.3 pts
16Crane County29-0.2 pts
17Ector County29-0.1 pts
18Midland County28.9-0.1 pts
19Webb County28.9-0.4 pts
20Zapata County28.8-0.6 pts
21Hidalgo County28.5-0.4 pts
22Terry County28.40 pts
23Cochran County28.3+0.3 pts
24Ward County28.1+0.1 pts
25Castro County28-0.2 pts
26Sherman County27.8-0.3 pts
27Parmer County27.8-0.2 pts
28Ochiltree County27.3-0.3 pts
29Winkler County27.3-0.2 pts
30Hansford County27.2-0.2 pts
31Reagan County27.2-0.6 pts
32Dimmit County27-0.5 pts
33Chambers County26.9-0.4 pts
34Sterling County26.8-0.6 pts
35Cameron County26.6-0.4 pts
36Uvalde County26.6+0.2 pts
37Val Verde County26.6-0.3 pts
38Hockley County26.3-0.3 pts
39Titus County26.2-0.2 pts
40Reeves County26.2-0.2 pts
41Bell County26.2-0.3 pts
42Jim Wells County26.2-0.1 pts
43Atascosa County26.1-0.3 pts
44Frio County25.9+0.3 pts
45Lamb County25.9-0.5 pts
46Rockwall County25.9-0.4 pts
47Jim Hogg County25.9-0.4 pts
48Camp County25.9-0.3 pts
49Ellis County25.8-0.3 pts
50Fort Bend County25.6-0.6 pts
51Glasscock County25.4+0.4 pts
52Gonzales County25.4-0.2 pts
53Navarro County25.3-0.3 pts
54Floyd County25.3-0.4 pts
55Shelby County25.20 pts
56Montgomery County25.1-0.3 pts
57Matagorda County25.1-0.2 pts
58Scurry County25-0.3 pts
59Bastrop County24.9-0.1 pts
60Hemphill County24.9-0.6 pts
61Johnson County24.9-0.2 pts
62Upton County24.8-0 pts
63Hunt County24.8+0.1 pts
64Potter County24.8-0.1 pts
65Harris County24.8-0.3 pts
66Brazoria County24.6-0.4 pts
67Cherokee County24.6-0.2 pts
68San Patricio County24.5-0.3 pts
69Crosby County24.4-0.6 pts
70Wharton County24.4-0.2 pts
71Orange County24.4-0.1 pts
72Dawson County24.3+0.1 pts
73Brooks County24.2-0.5 pts
74Waller County24.20 pts
75Victoria County24.1-0.2 pts
76Collingsworth County24.1-0.8 pts
77Gregg County24.1-0.2 pts
78Duval County24.1-0.6 pts
79Jackson County24.1-0.3 pts
80Tarrant County24.1-0.4 pts
81Parker County24-0.3 pts
82Hardin County24-0.3 pts
83Wise County24-0.3 pts
84Collin County24-0.4 pts
85El Paso County23.9-0.4 pts
86Sutton County23.9-0.1 pts
87Robertson County23.9-0.1 pts
88Angelina County23.9-0.2 pts
89Presidio County23.8-0.2 pts
90Caldwell County23.8-0.3 pts
91Nolan County23.8-0.2 pts
92Hale County23.8-0.5 pts
93Hardeman County23.8-0.2 pts
94Dallas County23.8-0.3 pts
95Knox County23.7-0.4 pts
96Bexar County23.7-0.3 pts
97Lamar County23.7-0.1 pts
98Guadalupe County23.7-0.4 pts
99Hopkins County23.6-0.2 pts
100Jefferson County23.6-0.2 pts
101Upshur County23.6-0.4 pts
102Howard County23.6-0.3 pts
103Crockett County23.6+0.3 pts
104Taylor County23.6-0.2 pts
105Lipscomb County23.6+0.8 pts
106Throckmorton County23.60 pts
107Wheeler County23.5-0.1 pts
108Gray County23.50 pts
109Grayson County23.5-0.1 pts
110King County23.4-1.1 pts
111Williamson County23.4-0.3 pts
112Delta County23.4-0.4 pts
113McLennan County23.4-0.2 pts
114Pecos County23.4-0.4 pts
115Smith County23.4-0.3 pts
116Kleberg County23.3-0.1 pts
117Randall County23.3-0.3 pts
118Hutchinson County23.2-0.5 pts
119Young County23.2-0.2 pts
120Baylor County23.2+0.1 pts
121Wilson County23.1-0.4 pts
122Hill County230 pts
123Bowie County23-0.2 pts
124Nueces County23-0.2 pts
125Austin County22.9-0.2 pts
126Carson County22.9-0.3 pts
127Cooke County22.8-0.4 pts
128Runnels County22.8-0.1 pts
129Harrison County22.8-0.3 pts
130Roberts County22.7-1.5 pts
131Panola County22.7-0.3 pts
132Colorado County22.7-0.2 pts
133Lubbock County22.7-0.3 pts
134Tom Green County22.6-0.3 pts
135Archer County22.6-0.6 pts
136Medina County22.6-0.1 pts
137Somervell County22.6-0.3 pts
138Palo Pinto County22.6-0 pts
139Denton County22.5-0.5 pts
140Limestone County22.5-0.2 pts
141Morris County22.5-0.1 pts
142Jasper County22.5+0.1 pts
143Leon County22.50 pts
144Van Zandt County22.4-0.3 pts
145Galveston County22.4-0.4 pts
146McMullen County22.4+0.6 pts
147Fisher County22.3-0 pts
148Willacy County22.2-0.4 pts
149Oldham County22.2-1.2 pts
150Motley County22.1+0.6 pts
151Burleson County22.1-0.3 pts
152Coryell County22.1-0.4 pts
153Swisher County22.1-0.8 pts
154Cass County22.1-0.3 pts
155Nacogdoches County22.1-0.1 pts
156Milam County22-0.3 pts
157Wichita County22-0.2 pts
158Culberson County22-0.2 pts
159Wilbarger County21.9-0.2 pts
160Shackelford County21.9-0.4 pts
161Lavaca County21.9-0.3 pts
162Hays County21.8-0.2 pts
163Calhoun County21.7-0.4 pts
164Callahan County21.7-0.3 pts
165Hamilton County21.7+0.1 pts
166Grimes County21.7-0.1 pts
167Armstrong County21.6+0.2 pts
168DeWitt County21.6-0.1 pts
169Kendall County21.6-0.3 pts
170Lee County21.6-0.6 pts
171Edwards County21.6+0.1 pts
172Borden County21.5+0.1 pts
173Refugio County21.5-0.5 pts
174Franklin County21.4-0.3 pts
175Montague County21.4-0.5 pts
176Comal County21.4-0.3 pts
177Briscoe County21.4-0.6 pts
178Freestone County21.3-0.6 pts
179Rusk County21.3-0.2 pts
180Comanche County21.2-0.6 pts
181Goliad County21.1-0.3 pts
182Schleicher County21.1-0.4 pts
183Coke County21.1-0.1 pts
184Madison County21-0.2 pts
185Irion County21-0.6 pts
186Fayette County20.90 pts
187Henderson County20.9-0 pts
188San Jacinto County20.8-0.1 pts
189Clay County20.8+0.2 pts
190Lampasas County20.7-0.3 pts
191Red River County20.7-0.3 pts
192Hartley County20.6-0.4 pts
193Eastland County20.6-0.3 pts
193La Salle County20.6-0.2 pts
195Coleman County20.5+0.1 pts
196Hall County20.4-0.4 pts
197Falls County20.4-0.2 pts
198Fannin County20.4-0.1 pts
199Brown County20.3-0.3 pts
200McCulloch County20.3-0.2 pts
201San Augustine County20.1+0.1 pts
202Jack County20.1-0.3 pts
203Rains County20-0.3 pts
204Washington County20-0.1 pts
205Brazos County20-0.2 pts
206Newton County19.9-0.1 pts
207Erath County19.9-0.3 pts
208Haskell County19.9+0.2 pts
209Burnet County19.8-0.1 pts
210Garza County19.7-0.7 pts
211Travis County19.7-0.2 pts
212Polk County19.6-0 pts
213Bosque County19.6-0.4 pts
214Stonewall County19.4-0.3 pts
215Trinity County19.4-0.2 pts
216Stephens County19.4-0.6 pts
217Hood County19.4-0.2 pts
218Houston County19.3-0.2 pts
219Donley County19.2-0.2 pts
220Real County19.2+1.1 pts
221Childress County19.2-0.3 pts
222Dickens County19.1+0.6 pts
223San Saba County19.1+0.4 pts
224Mills County19-0.7 pts
225Gillespie County18.8+0.1 pts
226Tyler County18.8-0.5 pts
227Mason County18.7-0.2 pts
228Foard County18.5+0.2 pts
229Kinney County18.3-0.2 pts
230Cottle County18.2-0.6 pts
231Kenedy County18.2+1.8 pts
232Karnes County18.2-0.4 pts
233Mitchell County18.1-0.6 pts
234Sabine County18.1-0.2 pts
235Live Oak County18.1+0.1 pts
236Anderson County18-0.1 pts
237Kent County18-2.2 pts
238Hudspeth County17.8-0.7 pts
239Kerr County17.7-0.2 pts
240Terrell County17.7-0.3 pts
241Bee County17.6-0.4 pts
242Wood County17.4-0.3 pts
243Kimble County17.4-0.4 pts
244Menard County17.4-0 pts
245Bandera County17.2-0.2 pts
246Aransas County17.1-0 pts
247Marion County17-0.1 pts
248Brewster County16.9-0.4 pts
249Blanco County16.4-0.2 pts
250Jones County16.2-0.3 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.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

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?

Gaines County, with 36% in 2025, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Concho County, with 11.2% in 2025.

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