Centennial vs Rock River

A side-by-side comparison of Centennial and Rock River: population, income, housing, and more.

Centennial and Rock River are places in Wyoming. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Centennial has the higher population (364 vs 254 in Rock River). Centennial has the higher median household income ($103,828 vs $62,750 in Rock River). Centennial has the higher median home value ($495,500 vs $128,300 in Rock River).

Population, income & housing

	Centennial	Rock River
Population	364	254
Median age	63.3 yrs	29.7 yrs
Median household income	$103,828	$62,750
Median home value	$495,500	$128,300
Median gross rent	—	$1,558
Housing units	328	132
Homeownership rate	95.3%	46.7%
Bachelor's degree or higher	69.3%	43.9%
Unemployment rate	0.0%	0.0%

Trends (ACS 5-year, 2019–2023)

	Centennial	Rock River
Population	308 → 364 (+18.2%)	204 → 254 (+24.5%)
Median household income	$58,320 → $103,828 (+78.0%)	$47,083 → $62,750 (+33.3%)
Median home value	$308,800 → $495,500 (+60.5%)	$72,100 → $128,300 (+77.9%)
Median gross rent	—	$1,067 → $1,558 (+46.0%)

Centennial

Population

308364

Median household income

$58,320$103,828

Median home value

$308,800$495,500

Rock River

Population

204254

Median household income

$47,083$62,750

Median home value

$72,100$128,300

Median gross rent

$1,067$1,558

Age & race/ethnicity

Age distribution (share)

	Centennial	Rock River
Under 5	0.0%	7.1%
5 to 17	0.0%	11.4%
18 to 24	3.3%	13.4%
25 to 34	5.8%	23.6%
35 to 44	0.0%	7.9%
45 to 54	8.2%	9.1%
55 to 64	45.3%	7.9%
65 to 74	12.4%	16.1%
75 and over	25.0%	3.5%

Race & ethnicity (share)

	Centennial	Rock River
White (non-Hispanic)	97.0%	80.3%
Black or African American	0.0%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	2.8%
Native Hawaiian & Pacific Islander	0.0%	3.9%
Some other race	0.0%	6.3%
Two or more races	0.0%	0.0%
Hispanic or Latino	3.0%	6.7%

Educational attainment (age 25+)

Share of adults 25+

	Centennial	Rock River
No high school diploma	11.1%	0.0%
High school graduate	14.8%	19.7%
Some college or associate's	4.8%	36.4%
Bachelor's degree	40.1%	32.9%
Graduate or professional degree	29.3%	11.0%

Commute to work

How workers get to work (share)

	Centennial	Rock River
Drove alone	27.3%	85.3%
Carpooled	0.0%	2.9%
Public transit	0.0%	0.0%
Walked	16.2%	2.9%
Bicycle	0.0%	0.0%
Worked from home	56.6%	7.4%
Other means	0.0%	1.5%

Housing

Units in structure (share)

	Centennial	Rock River
1-unit, detached	91.5%	69.7%
1-unit, attached	0.0%	0.0%
2 to 4 units	0.0%	1.5%
5 to 19 units	0.0%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	8.5%	28.8%

Poverty & households

	Centennial	Rock River
Poverty rate	10.7%	21.7%
Average household size	1.89	2.37
Mean commute (minutes)	—	33
Median year structure built	1979	1965