Counties in Montana by births (July to June)

Yellowstone County had the highest births (July to June) of 56 counties in 2023, at 1,821. Petroleum County had the lowest, at 4. The median was 76 and the figure for Montana was 11,027. Source: the U.S. Census Bureau.

Highest1,821Yellowstone County
Median7656 counties
Montana11,027History

All counties, 2023

CSVChart (SVG)

Yellowstone CountyYellowstone County: 1,821 count1,821Flathead CountyFlathead County: 1,191 count1,191Gallatin CountyGallatin County: 1,122 count1,122Missoula CountyMissoula County: 1,049 count1,049Cascade CountyCascade County: 918 count918Lewis and Clark CountyLewis and Clark County: 665 count665Ravalli CountyRavalli County: 366 count366Silver Bow CountySilver Bow County: 288 count288Lake CountyLake County: 280 count280Lincoln CountyLincoln County: 208 count208Hill CountyHill County: 196 count196Big Horn CountyBig Horn County: 185 count185Glacier CountyGlacier County: 173 count173Park CountyPark County: 169 count169Roosevelt CountyRoosevelt County: 158 count158Richland CountyRichland County: 139 count139Fergus CountyFergus County: 128 count128Custer CountyCuster County: 119 count119Rosebud CountyRosebud County: 119 count119Sanders CountySanders County: 117 count117Jefferson CountyJefferson County: 107 count107Beaverhead CountyBeaverhead County: 96 count96Carbon CountyCarbon County: 95 count95Dawson CountyDawson County: 95 count95Stillwater CountyStillwater County: 85 count85Madison CountyMadison County: 80 count80Blaine CountyBlaine County: 79 count79Deer Lodge CountyDeer Lodge County: 78 count78Pondera CountyPondera County: 74 count74Teton CountyTeton County: 73 count73Broadwater CountyBroadwater County: 72 count72Powell CountyPowell County: 62 count62Valley CountyValley County: 59 count59Musselshell CountyMusselshell County: 53 count53Toole CountyToole County: 47 count47Chouteau CountyChouteau County: 45 count45Fallon CountyFallon County: 39 count39Phillips CountyPhillips County: 39 count39Mineral CountyMineral County: 38 count38Sheridan CountySheridan County: 35 count35Sweet Grass CountySweet Grass County: 32 count32Granite CountyGranite County: 23 count23Liberty CountyLiberty County: 23 count23Meagher CountyMeagher County: 21 count21Judith Basin CountyJudith Basin County: 20 count20Daniels CountyDaniels County: 18 count18McCone CountyMcCone County: 18 count18Powder River CountyPowder River County: 17 count17Wheatland CountyWheatland County: 17 count17Garfield CountyGarfield County: 15 count15Carter CountyCarter County: 14 count14Prairie CountyPrairie County: 12 count12Wibaux CountyWibaux County: 12 count12Golden Valley CountyGolden Valley County: 11 count11Treasure CountyTreasure County: 8 count8Petroleum CountyPetroleum County: 4 count4
count. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2023
count
Change on 2022
1Yellowstone County Estimated1,821-1.5%
2Flathead County Estimated1,191+0.4%
3Gallatin County Estimated1,122-8.3%
4Missoula County Estimated1,049-4.8%
5Cascade County Estimated918-2.4%
6Lewis and Clark County Estimated665-1.8%
7Ravalli County Estimated366-11.8%
8Silver Bow County Estimated288-5.6%
9Lake County Estimated280-11.7%
10Lincoln County Estimated208+16.9%
11Hill County Estimated196-7.1%
12Big Horn County Estimated185+1.6%
13Glacier County Estimated173+1.2%
14Park County Estimated169+25.2%
15Roosevelt County Estimated158+7.5%
16Richland County Estimated139+7.8%
17Fergus County Estimated128+15.3%
18Custer County Estimated119+6.3%
18Rosebud County Estimated119-4%
20Sanders County Estimated117-1.7%
21Jefferson County Estimated107+1.9%
22Beaverhead County Estimated96+29.7%
23Carbon County Estimated95+15.9%
23Dawson County Estimated95+26.7%
25Stillwater County Estimated85-9.6%
26Madison County Estimated80+27%
27Blaine County Estimated79+12.9%
28Deer Lodge County Estimated78+9.9%
29Pondera County Estimated74-14.9%
30Teton County Estimated73+9%
31Broadwater County Estimated72-18.2%
32Powell County Estimated62+37.8%
33Valley County Estimated59-42.2%
34Musselshell County Estimated53+12.8%
35Toole County Estimated47-26.6%
36Chouteau County Estimated45+40.6%
37Fallon County Estimated39+34.5%
37Phillips County Estimated39-9.3%
39Mineral County Estimated38-9.5%
40Sheridan County Estimated35+2.9%
41Sweet Grass County Estimated32+10.3%
42Granite County Estimated23-11.5%
42Liberty County Estimated23+27.8%
44Meagher County Estimated21+23.5%
45Judith Basin County Estimated20+17.6%
46Daniels County Estimated18+100%
46McCone County Estimated18-10%
48Powder River County Estimated170%
48Wheatland County Estimated17-29.2%
50Garfield County Estimated15-28.6%
51Carter County Estimated14-22.2%
52Prairie County Estimated12-7.7%
52Wibaux County Estimated12+71.4%
54Golden Valley County Estimated110%
55Treasure County Estimated8+14.3%
56Petroleum County Estimated4-50%

Other periods

About this ranking

Estimated live births to resident mothers from July 1 of the previous year through June 30 of the reported year.

Census population estimates component. The year identifies the end of the July-to-June period. These estimates can be revised and differ from calendar-year birth totals.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program: births, July 1 of the previous year to June 30 of the reported year, nation, states and counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

Which county has the highest births (July to June)?

Yellowstone County, with 1,821 in 2023, according to the U.S. Census Bureau.

Which county has the lowest births (July to June)?

Petroleum County, with 4 in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: births, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.

Live births, July to June: other rankings

Counties in Montana: more rankings