Sequatchie County area

Population and density of Sequatchie County

The Census Bureau estimates that 17,861 people lived in Sequatchie County on July 1, 2025. That ranks #2,007 of 3,222 county equivalents nationally and #73 of 95 in Tennessee. Since the April 1, 2020 estimates base of 15,826, the population has grown by 2,035 (+12.9%), compared with +5.8% for Tennessee as a whole.

With 265.9 square miles of land, that is 67 people per square mile (26 per km²), placing Sequatchie County #1,288 nationally for density and #53 in Tennessee. The median county equivalent has 47 people per square mile; the Tennessee median is 76. Put another way, there are about 9.5 acres of land per resident.

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 Sequatchie County

1 incorporated place lies at least partly in Sequatchie County. Together they are home to 6,089 people (34.1%); the other 11,772 (65.9%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Dunlap city, with 6,089 residents in the county.

Metropolitan area

Sequatchie County is an outlying county of the Chattanooga, TN-GA Metropolitan Statistical Area. Its 6 county equivalents have 594,530 residents on 2,088.8 square miles of land; Sequatchie County accounts for 12.7% of the land and 3% of the residents. By combined land it ranks #152 of 393 metropolitan areas, and #100 by population. It belongs to the Chattanooga-Cleveland-Dalton, TN-GA-AL Combined Statistical Area.

ZIP codes

8 ZIP Code Tabulation Areas have land in Sequatchie County; 1 of them have most of their land inside the county, and the others mainly cover neighboring areas.

3711037327373383736537377373793739738585

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 Sequatchie County

Sequatchie County shares a land border with 6 county equivalents. Each of them has more land than Sequatchie County. The largest neighbor is Hamilton County (542.2 mi²) and the smallest is Van Buren County (273.4 mi²). Together with its neighbors, Sequatchie County forms a block of 2,779.4 mi² of land, of which it holds 9.6%.

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

Sequatchie County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 3.9 times as much. Tennessee’s county land could hold about 155 areas the size of Sequatchie County.

Another way to picture it: the same land area would fill a square about 16.3 miles (26.2 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 Sequatchie County?

Sequatchie County has more land than 349 of the other 3,221 county equivalents in the dataset.

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 Sequatchie County at #2,914 nationally by total area, 41 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 0.1%, compared with a national county-equivalent median of 1.2% — 1.1 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 Sequatchie County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

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.