County outline
Where Hickman County is located
Area breakdown
Land accounts for 100% of Hickman County’s measured area and water for 0%. Its combined area converts to 1,586.7 square kilometers or approximately 392,081 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 612.483 | 1,586.324 | 391,989.1 |
| Water | 0.144 | 0.373 | 92.2 |
| Total | 612.627 | 1,586.697 | 392,081.3 |
How Hickman County compares
By original Census land area, Hickman County ranks #11 of 95 in Tennessee and #1578 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.404 times the Tennessee county-equivalent median of 436.1 square miles. It accounts for 1.5% of the combined county land area in the state.
See the complete Tennessee ranking · What counts as a county equivalent?
Population and density of Hickman County
The Census Bureau estimates that 26,219 people lived in Hickman County on July 1, 2025. That ranks #1,619 of 3,222 county equivalents nationally and #58 of 95 in Tennessee. Since the April 1, 2020 estimates base of 24,910, the population has grown by 1,309 (+5.3%), compared with +5.8% for Tennessee as a whole.
With 612.5 square miles of land, that is 43 people per square mile (17 per km²), placing Hickman County #1,689 nationally for density and #74 in Tennessee. The median county equivalent has 47 people per square mile; the Tennessee median is 76. Put another way, there are about 15 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 24,972 | 25,080 | 25,466 | 25,794 | 25,913 | 26,219 |
| Change | — | +108 | +386 | +328 | +119 | +306 |
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 Hickman County
1 incorporated place lies at least partly in Hickman County. Together they are home to 3,589 people (13.7%); the other 22,630 (86.3%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Centerville town, with 3,589 residents in the county.
Metropolitan area
Hickman County is an outlying county of the Nashville-Davidson--Murfreesboro--Franklin, TN Metropolitan Statistical Area. Its 14 county equivalents have 2,197,416 residents on 6,302.2 square miles of land; Hickman County accounts for 9.7% of the land and 1.2% of the residents. By combined land it ranks #31 of 393 metropolitan areas, and #34 by population. It belongs to the Nashville-Davidson--Murfreesboro, TN Combined Statistical Area.
| County equivalent | Population 2025 | Land mi² |
|---|---|---|
| Davidson County | 745,904 | 503.5 |
| Rutherford County | 386,352 | 619.5 |
| Williamson County | 272,061 | 582.9 |
| Sumner County | 215,538 | 529.5 |
| Wilson County | 175,033 | 571.1 |
| Maury County | 118,131 | 613.1 |
| Robertson County | 80,175 | 476.3 |
| Dickson County | 58,662 | 489.9 |
| Cheatham County | 42,778 | 302.5 |
| Macon County | 27,663 | 307.1 |
| Hickman County | 26,219 | 612.5 |
| Smith County | 20,981 | 314.3 |
| Cannon County | 15,296 | 265.6 |
| Trousdale County | 12,623 | 114.3 |
ZIP codes
13 ZIP Code Tabulation Areas have land in Hickman County; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.
37025370333705537078370983710137137371403845438461384623847638487
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 Hickman County
Hickman County shares a land border with 6 county equivalents. It has more land than 5 of them. The largest neighbor is Maury County (613.1 mi²) and the smallest is Lewis County (282.1 mi²). Together with its neighbors, Hickman County forms a block of 3,526 mi² of land, of which it holds 17.4%.
| Bordering county equivalent | Land mi² | Size vs. Hickman | Compare |
|---|---|---|---|
| Maury County | 613.1 | about the same | Compare |
| Williamson County | 582.9 | 1.1× smaller | Compare |
| Humphreys County | 530.8 | 1.2× smaller | Compare |
| Dickson County | 489.9 | 1.3× smaller | Compare |
| Perry County | 414.8 | 1.5× smaller | Compare |
| Lewis County | 282.1 | 2.2× smaller | Compare |
How big is Hickman County compared with U.S. states?
Hickman County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.7 times as much. Tennessee’s county land could hold about 67 areas the size of Hickman County.
Another way to picture it: the same land area would fill a square about 24.7 miles (39.8 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 Hickman County?
Hickman County has more land than 1,644 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 Hickman County at #1,704 nationally by total area, 126 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%, 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 Hickman County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #1577 | Johnson County, Iowa | 613 | Compare |
| #1578 | Hickman County, Tennessee | 612.5 | This county |
| #1579 | Hyde County, North Carolina | 612.3 | Compare |
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 35.802327, -87.467116. 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: 1,586,324,692 m²; AWATER: 373,710 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Hickman County?
Hickman County, Tennessee has 612.5 square miles (1,586.3 km²) of land and 0.144 square miles of water, for a total area of 612.6 square miles. It ranks #1578 of 3,222 U.S. county equivalents by land area.
Is Hickman County the largest county in Tennessee?
No. Hickman County ranks #11 of 95 in Tennessee by land area. The largest is Shelby County, with 752.8 square miles of land.
What counties border Hickman County?
Hickman County shares a land border with Lewis County, Dickson County, Perry County, Maury County, Humphreys County, and Williamson County.
What is the population of Hickman County?
The Census Bureau estimates Hickman County had 26,219 residents on July 1, 2025, ranking #1,619 of 3,222 county equivalents. That is 43 people per square mile of land.
What is the county seat of Hickman County?
The county seat of Hickman County is Centerville.
Is Hickman County part of a metropolitan area?
Yes. It is an outlying county of the Nashville-Davidson--Murfreesboro--Franklin, TN Metropolitan Statistical Area, which has 14 county equivalents and 2,197,416 residents.
How many ZIP codes are in Hickman County?
13 ZIP Code Tabulation Areas have land in Hickman County, and 6 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Hickman County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 1.7 times as much land.
How many acres of land are in Hickman County?
The land measurement converts to approximately 391,989 acres. Including water, total area is approximately 392,081 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.