Montana · Census place 3020800

Dillon, Montana

Dillon is a city in Beaverhead County, Montana with an estimated 4,242 residents on July 1, 2024. It is the 21st largest of 55 incorporated places of 1,000+ people in the state.

Population 2024: 4,242; #21 of 55 in Montana
Change since 2020: +9.3%; +360 people
Land area: 1.9 sq mi
Density: 2,233 / sq mi; State median 2,232

Orange pin: Dillon. Shaded: its county. Dark pin: Helena.

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Tools and pages that start from Dillon

Dillon population, 2020 to 2024

Dillon added 360 residents from July 2020 to July 2024, a change of +9.3%. In the latest year it moved by +64.

July 1 estimates. The April 2020 estimates base was 3,876. The axis starts above zero so yearly changes are visible.

Dillon covers 1.90 square miles of land, for 2,233 people per square mile of land. The median Montana place of 5,000+ has 2,232, so Dillon is close to the typical town.

What county Dillon is in

All of Dillon's residents live in Beaverhead County, which had 10,006 residents in 2024. Dillon holds 42.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Dillon

1 ZIP Code Tabulation Area (ZCTA) overlaps Dillon by at least 10% of the ZCTA's or the city's land: 59725. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Dillon is

The Census internal point of Dillon is at 45.217900, -112.634600. Helena, the capital, is 99.1 miles NNE in a straight line. The nearest larger place is Butte-Silver Bow, MT (35,480 people), 46.9 miles away. The nearest city of 100,000 or more is Billings, MT, 201.6 miles away.

Internal point

Decimal: 45.217900, -112.634600
DMS: 45°13'4.44"N 112°38'4.56"W
UTM: 12N 371657.9E 5008456.4N
Geohash: c2pchztvr
Plus code: 85Q96998+55

Daylight in Dillon

At 45.22° N, Dillon gets about 15 h 39 min of daylight around the June solstice and 8 h 44 min around the December solstice, a swing of 6 h 55 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Dillon

The eight nearest incorporated places of 1,000+ in Montana, measured between internal points. The closest is Ennis, 44.8 miles away, with 1,081 people.

Questions people ask

What is the population of Dillon, MT?

4,242 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 360 (9.3%) from 3,882 in July 2020.

What county is Dillon in?

Beaverhead County. All of its residents live in that county.

What ZIP codes cover Dillon?

1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 59725.

How far is Dillon from Helena?

99.1 miles (159.5 km) in a straight line, heading NNE from Dillon.

What is the nearest larger city to Dillon?

Butte-Silver Bow, MT, with 35,480 residents, 46.9 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

How every number is computed: methodology. Spotted a wrong figure? Report an error.