Is Rocky Boy West, MT growing?

Name: Growth in Rocky Boy West, MT, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Rocky Boy West, MT had an estimated 1,007 (±214) residents in 2020–2024, against 852 in 2015–2019.

That is a change of +18.2%, not a measurable change.

Its housing went from 287 to 308 homes (+7.3%), not a measurable change.

0.0% of today’s homes were built in 2020 or later.

Figures last updated on November 12, 2026.

Residents now: 1,007 (±214)
Amount of change: +18.2%
Homes change: +7.3%
Built 2020 or later: 0.0%

Residents and homes in Rocky Boy West, 2015–2019 and 2020–2024

2015–2019 and 2020–2024 American Community Survey 5-year estimates
	2015–2019	2020–2024	Amount of change	Verdict
Residents	852 (±125)	1,007 (±214)	+18.2%	Not a measurable change
Housing units	287 (±45)	308 (±71)	+7.3%	Not a measurable change
Households that rent	88.7% (±6.8 points)	83.0% (±7.5 points)	−5.7 percentage points	Not a measurable change
Median gross rent	$267 (±$72)	$415 (±$52)	+55.4%	No measurable change after inflation

The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.

Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.

The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.

Growth in Rocky Boy West against Hill County, its state and the nation

Change between 2015–2019 and 2020–2024
	Residents	Verdict	Housing units
Rocky Boy West	+18.2%	Not a measurable change	+7.3%
Hill County	−1.7%	Measurable decrease	−1.6%
Montana	+6.3%	Measurable increase	+3.6%
United States	+3.1%	Measurable increase	+4.6%

A change in a place’s boundaries between the two periods (an annexation, say) changes its counts as well; the Census Bureau’s figures are for the place as it was drawn in each period.

New homes in Rocky Boy West

Housing units by year built, 2020–2024
Year built	Rocky Boy West	Hill County	Montana	United States
2020 or later	0.0% (±9.3 points)	0.0%	2.3%	2.0%
2010 to 2019	20.8% (±13.9 points)	5.9%	11.7%	9.4%
2000 to 2009	3.6% (±3.8 points)	5.4%	14.0%	13.6%

20.8% of the homes in Rocky Boy West were built in 2010 or later.

The median age of residents is 29.4 years.

Growth in places near Rocky Boy West

Change in residents between 2015–2019 and 2020–2024
Place	Distance	Residents now	Amount of change	Verdict
Rocky Boy West	—	1,007	+18.2%	Not a measurable change
Big Sandy	9.9 mi	784	+40.0%	Measurable increase
Havre	22 mi	9,258	−5.4%	Measurable decrease
Hingham	27 mi	127	+1.6%	Not a measurable change
Chinook	40 mi	1,353	+28.0%	Measurable increase
Fort Benton	45 mi	1,474	−3.2%	Not a measurable change
Chester	47 mi	749	−31.8%	Measurable decrease
Geraldine	50 mi	317	+77.1%	Measurable increase
Harlem	58 mi	822	+0.2%	Not a measurable change

Rocky Boy West is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Rocky Boy West

Is Rocky Boy West growing?

Rocky Boy West, MT had an estimated 1,007 residents in 2020–2024 and 852 in 2015–2019, a change of +18.2%: not a measurable change by the Census Bureau’s test.

How many homes have been added in Rocky Boy West?

The estimated number of housing units went from 287 in 2015–2019 to 308 in 2020–2024 (+7.3%), not a measurable change.

How much new construction is there in Rocky Boy West?

0.0% of homes in Rocky Boy West were built in 2020 or later and 20.8% between 2010 and 2019.

Sources

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Rocky Boy West CDP, Montana (place:63928, in state:30).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The 2015–2019 figures are B01003_001E, B01003_001M, B25001_001E, B25001_001M, DP04_0047PE, DP04_0047PM, B25064_001E, B25064_001M, B25077_001E, B25077_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0017PE, DP04_0017PM, DP04_0018PE, DP04_0018PM, DP05_0018E, DP05_0018M

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.