Lincoln County area

Lincoln County, Idaho covers 1,205.8 square miles: 1,201.4 square miles of land and 4.474 square miles of water. Its county seat is Shoshone. An estimated 5,603 people lived there in 2025.

Official Census measurements · GEOID 160632026 Gazetteer · retrieved September 27, 2026
Land area1,201.4 mi²
Water area4.474 mi²
Population (2025)5,603
People per mi²4.7

County outline

Generalized outline of Lincoln County, Idaho
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 Lincoln County is located

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

Area breakdown

Land accounts for 99.6% of Lincoln County’s measured area and water for 0.4%. Its combined area converts to 3,123.1 square kilometers or approximately 771,736 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land1,201.3643,111.518768,873
Water4.47411.5882,863.4
Total1,205.8383,123.106771,736.3

How Lincoln County compares

By original Census land area, Lincoln County ranks #25 of 44 in Idaho and #510 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.913 times the Idaho county-equivalent median of 1,315.7 square miles. It accounts for 1.5% of the combined county land area in the state.

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

Population and density of Lincoln County

The Census Bureau estimates that 5,603 people lived in Lincoln County on July 1, 2025. That ranks #2,843 of 3,222 county equivalents nationally and #37 of 44 in Idaho. Since the April 1, 2020 estimates base of 5,129, the population has grown by 474 (+9.2%), compared with +10.4% for Idaho as a whole.

With 1,201.4 square miles of land, that is 4.7 people per square mile (1.8 per km²), placing Lincoln County #2,864 nationally for density and #31 in Idaho. The median county equivalent has 47 people per square mile; the Idaho median is 10. Put another way, there are about 137 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate5,1375,2915,3805,5025,6315,603
Change—+154+89+122+129−28

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 Lincoln County

3 incorporated places lie at least partly in Lincoln County. Together they are home to 2,563 people (45.7%); the other 3,040 (54.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Shoshone city, with 1,767 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Shoshone cityCounty seat1,767+6.6%1.173
Richfield city483+12.9%0.656
Dietrich city313+10.6%0.324

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

Metropolitan area

Lincoln County is an outlying county of the Hailey, ID Micropolitan Statistical Area. Its 3 county equivalents have 32,436 residents on 4,913.3 square miles of land; Lincoln County accounts for 24.5% of the land and 17.3% of the residents. By combined land it ranks #22 of 542 micropolitan areas, and #424 by population.

County equivalentPopulation 2025Land mi²
Blaine County25,5172,637.7
Lincoln County5,6031,201.4
Camas County1,3161,074.2

ZIP codes

6 ZIP Code Tabulation Areas have land in Lincoln County; 3 of them have most of their land inside the county, and the others mainly cover neighboring areas.

833248333083338833478334983352

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 Lincoln County

Lincoln County shares a land border with 5 county equivalents. It has more land than 4 of them. The largest neighbor is Blaine County (2,637.7 mi²) and the smallest is Jerome County (597.5 mi²). Together with its neighbors, Lincoln County forms a block of 6,997.4 mi² of land, of which it holds 17.2%.

Map of Lincoln County and the 5 county equivalents that border it Minidoka County, Idaho: 757.2 mi² landJerome County, Idaho: 597.5 mi² landBlaine County, Idaho: 2,637.7 mi² landGooding County, Idaho: 729.3 mi² landCamas County, Idaho: 1,074.2 mi² land
Lincoln 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. LincolnCompare
Blaine County2,637.72.2× largerCompare
Camas County1,074.21.1× smallerCompare
Minidoka County757.21.6× smallerCompare
Gooding County729.31.6× smallerCompare
Jerome County597.52× smallerCompare

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

Lincoln County has more land than 1 of the 50 states. It is about 1.2 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.6 times as much land (1,948.6 mi²). Idaho’s county land could hold about 69 areas the size of Lincoln County.

Land area: Lincoln County and the closest-sized states
Rhode Island1,033.9 mi²
Lincoln County1,201.4 mi²
Delaware1,948.6 mi²

Another way to picture it: the same land area would fill a square about 34.7 miles (55.8 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 Lincoln County?

Lincoln County has more land than 2,712 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Lincoln County1,201.4 mi²
Idaho median1,315.7 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 Lincoln County at #589 nationally by total area, 79 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 0.4%, compared with a national county-equivalent median of 1.2% — 0.8 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 Lincoln County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#509Broward County, Florida1,203Compare
#510Lincoln County, Idaho1,201.4This county
#511Oneida County, Idaho1,199Compare

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 42.990782, -114.153089. 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: 3,111,517,503 m²; AWATER: 11,588,560 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 Lincoln County?

Lincoln County, Idaho has 1,201.4 square miles (3,111.5 km²) of land and 4.474 square miles of water, for a total area of 1,205.8 square miles. It ranks #510 of 3,222 U.S. county equivalents by land area.

Is Lincoln County the largest county in Idaho?

No. Lincoln County ranks #25 of 44 in Idaho by land area. The largest is Idaho County, with 8,477.5 square miles of land.

What counties border Lincoln County?

Lincoln County shares a land border with Minidoka County, Jerome County, Blaine County, Gooding County, and Camas County.

What is the population of Lincoln County?

The Census Bureau estimates Lincoln County had 5,603 residents on July 1, 2025, ranking #2,843 of 3,222 county equivalents. That is 4.7 people per square mile of land.

What is the county seat of Lincoln County?

The county seat of Lincoln County is Shoshone.

What cities and towns are in Lincoln County?

Lincoln County has 3 incorporated places. The most populous are Shoshone city, Richfield city, and Dietrich city; 3,040 residents live outside any incorporated place.

Is Lincoln County part of a metropolitan area?

Yes. It is an outlying county of the Hailey, ID Micropolitan Statistical Area, which has 3 county equivalents and 32,436 residents.

How many ZIP codes are in Lincoln County?

6 ZIP Code Tabulation Areas have land in Lincoln County, and 3 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).

How many acres of land are in Lincoln County?

The land measurement converts to approximately 768,873 acres. Including water, total area is approximately 771,736 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

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