Jack County area

Jack County, Texas covers 920.1 square miles: 911 square miles of land and 9.152 square miles of water. Its county seat is Jacksboro. An estimated 9,563 people lived there in 2025.

Official Census measurements · GEOID 482372026 Gazetteer · retrieved September 27, 2026
Land area911 mi²
Water area9.152 mi²
Population (2025)9,563
People per mi²10

County outline

Generalized outline of Jack County, Texas
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Jack County is located

Jack County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 99% of Jack County’s measured area and water for 1%. Its combined area converts to 2,383.1 square kilometers or approximately 588,879 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land910.9722,359.407583,022.1
Water9.15223.7045,857.3
Total920.1242,383.11588,879.4

How Jack County compares

By original Census land area, Jack County ranks #124 of 254 in Texas and #820 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.003 times the Texas county-equivalent median of 908.7 square miles. It accounts for 0.3% of the combined county land area in the state.

See the complete Texas ranking · What counts as a county equivalent?

Population and density of Jack County

The Census Bureau estimates that 9,563 people lived in Jack County on July 1, 2025. That ranks #2,516 of 3,222 county equivalents nationally and #167 of 254 in Texas. Since the April 1, 2020 estimates base of 8,471, the population has grown by 1,092 (+12.9%), compared with +8.8% for Texas as a whole.

With 911 square miles of land, that is 10 people per square mile (4.1 per km²), placing Jack County #2,628 nationally for density and #165 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 61 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate8,4848,5408,7389,1999,4219,563
Change—+56+198+461+222+142

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Jack County

2 incorporated places lie at least partly in Jack County. Together they are home to 5,209 people (54.5%); the other 4,354 (45.5%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Jacksboro city, with 4,735 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Jacksboro cityCounty seat4,735+13.5%7.228
Bryson city474+10.7%1.316

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Jack County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Jack County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

11 ZIP Code Tabulation Areas have land in Jack County; 4 of them have most of their land inside the county, and the others mainly cover neighboring areas.

7623076365763897642676427764317644976458764597648676487

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Jack County

Jack County shares a land border with 7 county equivalents. It has more land than 3 of them. The largest neighbor is Clay County (1,088.8 mi²) and the smallest is Archer County (903.3 mi²). Together with its neighbors, Jack County forms a block of 7,509.1 mi² of land, of which it holds 12.1%.

Map of Jack County and the 7 county equivalents that border it Wise County, Texas: 904.4 mi² landYoung County, Texas: 914.5 mi² landClay County, Texas: 1,088.8 mi² landPalo Pinto County, Texas: 952.5 mi² landParker County, Texas: 903.7 mi² landArcher County, Texas: 903.3 mi² landMontague County, Texas: 930.9 mi² land
Jack County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. JackCompare
Clay County1,088.81.2× largerCompare
Palo Pinto County952.5about the sameCompare
Montague County930.9about the sameCompare
Young County914.5about the sameCompare
Wise County904.4about the sameCompare
Parker County903.7about the sameCompare
Archer County903.3about the sameCompare

How big is Jack County compared with U.S. states?

Jack County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.1 times as much. Texas’s county land could hold about 287 areas the size of Jack County.

Land area: Jack County and the closest-sized states
Jack County911 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 30.2 miles (48.6 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Jack County?

Jack County has more land than 2,402 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Jack County911 mi²
Texas median908.7 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Jack County at #903 nationally by total area, 83 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 1%, compared with a national county-equivalent median of 1.2% — 0.2 percentage points lower. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Jack County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#819Mitchell County, Texas911.1Compare
#820Jack County, Texas911This county
#821Suffolk County, New York910.9Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 33.235526, -98.169284. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 2,359,405,665 m²; AWATER: 23,704,611 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Jack County?

Jack County, Texas has 911 square miles (2,359.4 km²) of land and 9.152 square miles of water, for a total area of 920.1 square miles. It ranks #820 of 3,222 U.S. county equivalents by land area.

Is Jack County the largest county in Texas?

No. Jack County ranks #124 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.

What counties border Jack County?

Jack County shares a land border with Wise County, Young County, Clay County, Palo Pinto County, Parker County, Archer County, and Montague County.

What is the population of Jack County?

The Census Bureau estimates Jack County had 9,563 residents on July 1, 2025, ranking #2,516 of 3,222 county equivalents. That is 10 people per square mile of land.

What is the county seat of Jack County?

The county seat of Jack County is Jacksboro.

What cities and towns are in Jack County?

Jack County has 2 incorporated places. The most populous are Jacksboro city and Bryson city; 4,354 residents live outside any incorporated place.

Is Jack County part of a metropolitan area?

No. Jack County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Jack County?

11 ZIP Code Tabulation Areas have land in Jack County, and 4 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Jack County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.1 times as much land.

How many acres of land are in Jack County?

The land measurement converts to approximately 583,022 acres. Including water, total area is approximately 588,879 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

Download the complete CSV or JSON dataset