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Roundup, Montana

6 topographic sheets cover this place, the earliest surveyed in 1954 and the latest in 1979. It stands in the Roundup census division. It lies in ZIP code area 59072. The Survey maps it on the Roundup quadrangle. 1,742 people lived here at the 2020 count. It stands 3,215 feet above sea level.

Research this city

Roundup within Musselshell County

On record in Roundup

Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.

On the National Register 2 records

Population over time

2 figures

Roundup fell from 1,788 to 1,742 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

YearPeople Change
20101,788
20201,742-46 (-3%)

Topographic sheets covering this place

4 surveys from 6 printed sheets

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

Fires near this place

9 since 2007

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 9 fires within 5 miles of Roundup between 2007 and 2017, burning about 423 acres in total. 3 started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause Fires
Missing data/not specified/undetermined5
Natural3
Debris and open burning1

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

DateCause SizeReported by Name on the report
4 July 2017Missing data/not specified/undetermined14 acresSouthern Land Office4TH
29 July 2014Natural102 acresBillings Field OfficeBENDER ROAD FIRE
22 July 2017Missing data/not specified/undeterminedunder an acreSouthern Land OfficeRIVER WALK
22 July 2014Natural20 acresBillings Field OfficePARADISE FIRE
19 July 2017Missing data/not specified/undeterminedunder an acreSouthern Land OfficeRED ROCK KLEIN
15 July 2007Natural6.0 acresBillings Field OfficeWELL
31 May 2017Missing data/not specified/undeterminedunder an acreBillings Field OfficeGOLF COURSE
20 April 2009Debris and open burning280 acresBillings Field OfficeGOLF COURSE

Settlements close enough to share some of these fires:

Every fire recorded in Musselshell County

Storms near this place

60 of 135 shown

Regional context, not property-specific evidence. The National Weather Service names Roundup in 135 storm reports between 1994 and 2025: 104 hail, 15 thunderstorm wind, 8 flash flood, 3 flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

WhenEvent Place namedHarm What the report says
July 1998Flash FloodRoundup$200,000A slow moving thunderstorm with heavy rain caused water to run over roads on the east end of Roundup. Over one inch of rain fell during a ten minute period. The Roundup Tribune reported that several basements were flooded.
May 1999Tornado (F0)Roundup$25,000Eyewitnesses reported seeing a funnel cloud pass over Roundup, and a tornado touchdown north of US12 1 mile east of Roundup. Several trees were downed, a chicken shed was demolished and several sections of wood fencing were destroyed.
August 1998Thunderstorm WindRoundup$10,000A strong thunderstorm downed several trees and a few power lines in and around Roundup.
July 2000Thunderstorm WindRoundup$3,0002.00 inch hail reported along with broken windows. A hay bale was blown 50 yards.
August 1999Thunderstorm WindRoundup$1,000Wind gusts to 60 mph damaged several large construction signs.
July 2025FloodRoundup-Spotter reported flooding of drainage ditches and streets. Water flowing up over lawn at hospital in Roundup.
July 2025HailRoundup-Quarter size hail reported.
July 2025Heavy RainRoundup-Got 1.27 ins in 30 minutes. Flooding on property.
June 2019HailRoundup-Quarter size hail was reported 5 miles west of Roundup.
May 2018HailRoundup-Seven windows were broken in a home.
May 2018HailRoundup-Some broken windows were reported.
May 2018HailRoundup-There was widespread golf ball to tennis ball size hail in Roundup. Please see Episode Narrative for this event.
May 2018HailRoundup-There was widespread golf ball to tennis ball size hail in Roundup. Please see Episode Narrative for this event.
May 2018Flash FloodRoundup-Please see Episode Write-up.
June 2013HailRoundup-Pea to quarter size hail with winds estimated at 50 mph were reported.
June 2013HailRoundup-Pea to quarter size hail was reported.
June 2013HailRoundup-Hail was quarter to half dollar size and was accompanied by 50 mph winds.
June 2013HailRoundup-Hail was nickel to quarter size and was accompanied by winds estimated at 70 to 80 mph.
July 2013Thunderstorm WindRoundup-Thunderstorm wind gusts brought down large tree branches.
May 2007HailRoundup-Quarter to half dollar size hail was reported.
June 2007Thunderstorm WindRoundup-Several trees and power lines were blown down by 70 mph winds. This resulted in some blocked roadways.
June 2007HailRoundup-The golf ball size hail persisted for 20 minutes.
June 2007Funnel CloudRoundup-Spotter was looking north towards Roundup and observed a funnel briefly.
June 2007HailRoundup-Pea to nickel size hail fell with this storm.
July 2006Thunderstorm WindRoundup-Bull Mountain Divide DOT
June 2006Thunderstorm WindRoundup-Roof damage
August 2006HailRoundup-Grain bin destroyed.
July 2004Flash FloodRoundup-Flash flooding reported on Horsethief Road.
August 2002Flash FloodRoundup-Flash flood near Mile Marker 30 caused a motorist to take an alternate route home.Water over U.S. Highway 87.
August 2002Flash FloodRoundup-Flash flood occurred near Mile Marker 30 on U.S. Highway 87
July 2001Flash FloodRoundup-Water continued to cover the roadways and the reservoirs were overflowing.
July 2001Flash FloodRoundup-Water covered the roadways
July 2001Thunderstorm WindRoundup-80 mph thunderstorm wind gust...trees down in the Bull Mountains
July 2001HailRoundup-Hail completed covered the ground
July 2001HailRoundup-Hail completly covered the ground
July 2001HailRoundup-Nickel size hail two feet deep
August 2000Thunderstorm WindRoundup-60 mph wind resulting in downed trees
August 1999Flash FloodRoundup-Flash Flooding was reported in the coulees draining into the Musselshell River along the border between Golden Valley and Musselshell Counties. Water 2 to 3 feet deep covered roadways and ripped out fences.
August 1999HailRoundup-Half dollar size hail reported.
June 1999HailRoundup-Several spotters reported nickel to dime size hail in southern Musselshell County.
August 1999HailRoundup-Silver Dollar size hail reported.
August 1999HailRoundup-Dime size hail reported near Roundup.
June 1999Funnel CloudRoundup-Spotters indicated a funnel cloud on US-87.
June 1999Thunderstorm WindRoundup-Musselshell County Sheriff reported 65 mph wind gusts. Several large tree branches and street signs were blown down.
June 2024HailRoundup-no account filed
July 2020HailRoundup-no account filed
July 2020HailRoundup-no account filed
July 2020HailRoundup-no account filed
June 2018HailRoundup-no account filed
May 2018HailRoundup-no account filed
May 2018Thunderstorm WindRoundup-no account filed
February 2017FloodRoundup-no account filed
June 2016HailRoundup-no account filed
June 2016HailRoundup-no account filed
June 2016HailRoundup-no account filed
July 2016HailRoundup-no account filed
July 2016HailRoundup-no account filed
July 2016HailRoundup-no account filed
July 2016HailRoundup-no account filed
July 2015HailRoundup-no account filed

Every storm recorded in Musselshell County

Nearest settlements

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Map PlaceDistance Sheets
Camp Three1.3 miles6
Riverside1.9 miles6
Gibbtown2.3 miles6
Klein2.9 miles6
Republic (historical)2.9 miles6
Farralltown3.4 miles6
Gage8.2 miles6
Elso9.8 miles6

Elsewhere

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

Wikipedia article on RoundupAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q955369The structured record the population and elevation above come from. Public domain (CC0).

Provenance

This settlement is recorded in the Geographic Names Information System as feature 778772. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.