Data / Rankings / Population under 18 / Counties in Texas

Counties in Texas by population under 18

Gaines County had the highest population under 18 of 254 counties in 2017, at 34.6%. Jeff Davis County had the lowest, at 13.5%. The median was 24% and the figure for Texas was 25.7%. Source: the U.S. Census Bureau.

Highest34.6Gaines County
Lowest13.5Jeff Davis County
Median24254 counties
Texas25.7History

Top 40 counties, 2017

Gaines County: 34.6 %Gaines County34.6Loving County: 34.5 %Loving County34.5Webb County: 32 %Webb County32Zapata County: 32 %Zapata County32Hidalgo County: 31.8 %Hidalgo County31.8Bailey County: 31.4 %Bailey County31.4Starr County: 31.3 %Starr County31.3Hemphill County: 31.1 %Hemphill County31.1Deaf Smith County: 31.1 %Deaf Smith County31.1Ochiltree County: 31 %Ochiltree County31Moore County: 30.7 %Moore County30.7Maverick County: 30.5 %Maverick County30.5Andrews County: 30.2 %Andrews County30.2Cameron County: 30.1 %Cameron County30.1Dallam County: 30.1 %Dallam County30.1Oldham County: 30.1 %Oldham County30.1King County: 29.8 %King County29.8Yoakum County: 29.8 %Yoakum County29.8Parmer County: 29.6 %Parmer County29.6Reagan County: 29.5 %Reagan County29.5Crane County: 29.4 %Crane County29.4Sherman County: 29.4 %Sherman County29.4Zavala County: 29.2 %Zavala County29.2Hansford County: 29.1 %Hansford County29.1Winkler County: 28.9 %Winkler County28.9Martin County: 28.9 %Martin County28.9Castro County: 28.7 %Castro County28.7Cochran County: 28.6 %Cochran County28.6Jim Hogg County: 28.3 %Jim Hogg County28.3Upton County: 28.3 %Upton County28.3Dimmit County: 28.3 %Dimmit County28.3Kaufman County: 28.1 %Kaufman County28.1Titus County: 28.1 %Titus County28.1Fort Bend County: 28 %Fort Bend County28Ector County: 27.9 %Ector County27.9Terry County: 27.9 %Terry County27.9Chambers County: 27.8 %Chambers County27.8Lynn County: 27.6 %Lynn County27.6Lamb County: 27.6 %Lamb County27.6Rockwall County: 27.6 %Rockwall County27.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2017 (%)Change on 2016
1Gaines County34.6-0.2 pts
2Loving County34.5-4.2 pts
3Webb County32-0.5 pts
4Zapata County32-0.6 pts
5Hidalgo County31.8-0.5 pts
6Bailey County31.4-0.6 pts
7Starr County31.3-0.2 pts
8Hemphill County31.1-0.5 pts
9Deaf Smith County31.1-0.3 pts
10Ochiltree County31-0.3 pts
11Moore County30.7-0.2 pts
12Maverick County30.5-0.5 pts
13Andrews County30.2-0.1 pts
14Cameron County30.1-0.5 pts
15Dallam County30.1+0.1 pts
16Oldham County30.1-0.7 pts
17King County29.8+0.7 pts
18Yoakum County29.8-1 pts
19Parmer County29.6+0.2 pts
20Reagan County29.5+0.2 pts
21Crane County29.4-0 pts
22Sherman County29.4+0.8 pts
23Zavala County29.2-0.9 pts
24Hansford County29.1-0.2 pts
25Winkler County28.9-0.5 pts
26Martin County28.9-0.5 pts
27Castro County28.7-0.1 pts
28Cochran County28.6-0.2 pts
29Jim Hogg County28.3-0.7 pts
30Upton County28.3-0.1 pts
31Dimmit County28.3-0.7 pts
32Kaufman County28.10 pts
33Titus County28.1-0.2 pts
34Fort Bend County28-0.1 pts
35Ector County27.9-0.3 pts
36Terry County27.9+0.4 pts
37Chambers County27.80 pts
38Lynn County27.6+0.6 pts
39Lamb County27.60 pts
40Rockwall County27.6-0.2 pts
41Jim Wells County27.5-0.4 pts
42Floyd County27.4-0 pts
43Kenedy County27.4-1.6 pts
44Val Verde County27.4-0.3 pts
45Midland County27.3-0.1 pts
46Schleicher County27.3-0.7 pts
47Bell County27.2-0.2 pts
48Ellis County27.1-0 pts
49Crosby County27-0.5 pts
50Atascosa County27-0.3 pts
51Ward County26.9-0.2 pts
52Collin County26.9-0.3 pts
53Sterling County26.8-0.1 pts
54Hale County26.8-0.3 pts
55El Paso County26.7-0.4 pts
56Montgomery County26.7-0.2 pts
57Roberts County26.7+1 pts
58Williamson County26.6-0.3 pts
59Brazoria County26.5-0.1 pts
60Harris County26.4-0.2 pts
61Guadalupe County26.3-0.2 pts
62Tarrant County26.3-0.2 pts
63Hockley County26.3-0.2 pts
64Potter County26.3-0.2 pts
65San Patricio County26.2-0.3 pts
66Uvalde County26.2-0.5 pts
67Denton County26.1-0.3 pts
68Brooks County26-0.3 pts
69Gonzales County26-0.5 pts
70Camp County25.8-0.1 pts
71Johnson County25.8-0.1 pts
72Caldwell County25.7+0.1 pts
73Dallas County25.7-0.3 pts
73Hutchinson County25.7-0.1 pts
75Presidio County25.6+0.4 pts
76Knox County25.6-0.2 pts
77Lipscomb County25.6-0.6 pts
78Navarro County25.5-0.1 pts
79Bexar County25.5-0.2 pts
80Shelby County25.5-0.2 pts
81Collingsworth County25.4-0.7 pts
82Nolan County25.4-0.1 pts
83Scurry County25.4-0.3 pts
84Wharton County25.3-0 pts
85Harrison County25.3-0.1 pts
86Cherokee County25.3-0.2 pts
87Frio County25.3-0.1 pts
88Angelina County25.3-0.3 pts
89Victoria County25.2-0.2 pts
90Swisher County25.2+0.1 pts
91Gray County25.2+0.3 pts
92Wheeler County25.2-0.7 pts
93Matagorda County25.1-0 pts
94Bastrop County25.1-0.1 pts
95Carson County25.1-0.9 pts
96Liberty County25+0.2 pts
97Dawson County25-0.6 pts
98Sutton County24.9-0.5 pts
99Wise County24.90 pts
100Gregg County24.9-0.3 pts
101Parker County24.8-0 pts
102Hopkins County24.8-0.2 pts
103Wilson County24.7-0.2 pts
104Upshur County24.7+0.2 pts
105Coryell County24.6-0.1 pts
106Robertson County24.6+0.2 pts
107McLennan County24.6-0.2 pts
108Hardin County24.6-0.1 pts
109Jackson County24.5-0.3 pts
110Milam County24.5-0.1 pts
111Cooke County24.5+0.1 pts
112Smith County24.5-0.1 pts
113Culberson County24.4+0.7 pts
114Galveston County24.3-0.2 pts
115Nueces County24.3-0.4 pts
116Somervell County24.3-0.1 pts
117Taylor County24.3-0.1 pts
118Orange County24.2-0.1 pts
119Lee County24.2+0.2 pts
120Crockett County24.1-1.1 pts
121Calhoun County24.1-0.6 pts
122Young County24.1-0.2 pts
123Shackelford County24.1-0.1 pts
124Randall County24.1-0.1 pts
125Lubbock County24-0.2 pts
126Pecos County24-0.4 pts
127Waller County24-0.2 pts
128Hunt County24-0 pts
129Duval County23.9-0.6 pts
130Willacy County23.9-0.6 pts
131Borden County23.8+1 pts
132Austin County23.8-0.3 pts
133Kleberg County23.7+0.1 pts
134Hill County23.70 pts
135Panola County23.7-0.3 pts
136Jefferson County23.60 pts
137Medina County23.6-0.2 pts
138Tom Green County23.5-0 pts
139Jasper County23.5-0.2 pts
140Lamar County23.5-0.1 pts
141Grayson County23.5-0.1 pts
142Franklin County23.4-0.4 pts
143Hays County23.4-0.1 pts
144Kendall County23.4-0.1 pts
145Lavaca County23.2+0.1 pts
146Bowie County23.2-0.2 pts
147Wilbarger County23.2-0.2 pts
148Hardeman County23.2-0.6 pts
149Callahan County23.2-0 pts
150Refugio County23.1-0.8 pts
151Lampasas County23.1-0.2 pts
152Van Zandt County23.1-0.1 pts
153Limestone County23.1-0.3 pts
154Palo Pinto County23-0 pts
155Armstrong County23-0.5 pts
156Glasscock County23-0.1 pts
157Runnels County22.9+0.1 pts
158Nacogdoches County22.9-0.1 pts
159Hall County22.8-0.3 pts
160Howard County22.7-0.4 pts
161Archer County22.70 pts
162Brown County22.7-0.4 pts
163Morris County22.6+0.2 pts
164Montague County22.5-0.2 pts
165Rusk County22.5-0.7 pts
166Baylor County22.4+0.1 pts
167Goliad County22.4-0.2 pts
168Travis County22.3-0.3 pts
169Delta County22.3+0.5 pts
170Comanche County22.3-0 pts
171Wichita County22.2-0 pts
172DeWitt County22.2-0.5 pts
173Comal County22.2-0.2 pts
174Terrell County22.1+1.3 pts
175Colorado County22.10 pts
176McCulloch County22.1-0.5 pts
177San Jacinto County22.1-0.1 pts
178Grimes County22.1+0.1 pts
179Cass County22.1-0.4 pts
180Freestone County22-0.3 pts
181Irion County22-1.5 pts
182Burleson County22-0.3 pts
183Jack County21.8+0.1 pts
184Cottle County21.8-1.4 pts
185Stephens County21.7-0.3 pts
186Dickens County21.6-0.4 pts
187Leon County21.6-0.3 pts
188Reeves County21.6+0.3 pts
189Fisher County21.6+0.1 pts
189Throckmorton County21.6-0.3 pts
191Hartley County21.5-0.5 pts
192Burnet County21.4-0.3 pts
193Newton County21.4-0.2 pts
194Eastland County21.4+0.2 pts
195Edwards County21.3+1.2 pts
196La Salle County21.3-0.1 pts
197Hamilton County21.2+0.6 pts
198Washington County21.2-0 pts
199Bosque County21.2-0.4 pts
200Childress County21.2-0.3 pts
201Fannin County21.1+0.2 pts
202Mills County21.1-0.9 pts
203Clay County21.10 pts
204Henderson County21.1-0.4 pts
205Falls County21+0.1 pts
206Haskell County20.7+0.1 pts
207Madison County20.7-0.2 pts
208Erath County20.6-0 pts
209Brazos County20.6-0.1 pts
210Hood County20.5-0.3 pts
211Fayette County20.5-0.5 pts
212Coleman County20.4-0.6 pts
213Mitchell County20.4+1.1 pts
214Bee County20.4-0.3 pts
215Coke County20.30 pts
216Red River County20.3+0.1 pts
217San Augustine County20.1+0.1 pts
218Briscoe County20.1-0.3 pts
219Stonewall County20-1.6 pts
220Rains County19.9-0.1 pts
221Trinity County19.8+0.3 pts
222Donley County19.8-0.9 pts
223Hudspeth County19.7-2.1 pts
224Polk County19.6-0.2 pts
225Mason County19.6-0.6 pts
226San Saba County19.5-0.3 pts
227McMullen County19.5-3 pts
228Foard County19.4+0.9 pts
229Karnes County19.4-0.3 pts
230Sabine County19.3+0.2 pts
231Houston County19.2+0.2 pts
232Tyler County19.2-0.1 pts
233Brewster County19-0.2 pts
234Wood County19-0.4 pts
235Motley County18.9+0.6 pts
236Gillespie County18.8+0.1 pts
237Anderson County18.6-0.4 pts
238Blanco County18.5-0.2 pts
239Live Oak County18.5-0 pts
240Kerr County18.5-0.3 pts
241Kent County18.2+0.4 pts
242Garza County18-0.6 pts
243Kinney County18+0.6 pts
244Marion County17.9-0.1 pts
245Kimble County17.80 pts
246Aransas County17.8-0.3 pts
247Menard County17.6-1.6 pts
248Jones County17.50 pts
249Real County17.3-0.4 pts
250Bandera County17.1+0.2 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, 2017) [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, 2017. 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=2017. 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, 2017. 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=2017.

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, 2017 [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=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_texas_by_2017,
  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, 2017}},
  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=2017. 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, 2017
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=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/texas-counties?period=2017.
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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Questions

Which county has the highest population under 18?

Gaines County, with 34.6% in 2017, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Jeff Davis County, with 13.5% in 2017.

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