Petersburg vs South Rockwood

A side-by-side comparison of Petersburg and South Rockwood: population, income, housing, and more.

Petersburg and South Rockwood are places in Michigan. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

South Rockwood has the higher population (1,891 vs 1,261 in Petersburg). South Rockwood has the higher median household income ($78,063 vs $76,071 in Petersburg). South Rockwood has the higher median home value ($217,800 vs $197,100 in Petersburg).

Population, income & housing

	Petersburg	South Rockwood
Population	1,261	1,891
Median age	39.2 yrs	39.1 yrs
Median household income	$76,071	$78,063
Median home value	$197,100	$217,800
Median gross rent	$1,019	$1,325
Housing units	483	807
Homeownership rate	83.5%	62.4%
Bachelor's degree or higher	18.2%	18.9%
Unemployment rate	3.2%	3.3%

Trends (ACS 5-year, 2019–2023)

	Petersburg	South Rockwood
Population	1,200 → 1,261 (+5.1%)	1,770 → 1,891 (+6.8%)
Median household income	$58,147 → $76,071 (+30.8%)	$71,389 → $78,063 (+9.3%)
Median home value	$129,900 → $197,100 (+51.7%)	$142,500 → $217,800 (+52.8%)
Median gross rent	$752 → $1,019 (+35.5%)	$1,102 → $1,325 (+20.2%)

Petersburg

Population

1,2001,261

Median household income

$58,147$76,071

Median home value

$129,900$197,100

Median gross rent

$752$1,019

South Rockwood

Population

1,7701,891

Median household income

$71,389$78,063

Median home value

$142,500$217,800

Median gross rent

$1,102$1,325

Age & race/ethnicity

Age distribution (share)

	Petersburg	South Rockwood
Under 5	5.2%	2.4%
5 to 17	17.2%	20.7%
18 to 24	11.7%	6.2%
25 to 34	12.4%	16.6%
35 to 44	13.1%	15.4%
45 to 54	10.2%	11.7%
55 to 64	17.9%	10.3%
65 to 74	6.3%	9.3%
75 and over	5.9%	7.4%

Race & ethnicity (share)

	Petersburg	South Rockwood
White (non-Hispanic)	95.0%	88.2%
Black or African American	0.0%	3.2%
American Indian & Alaska Native	0.0%	0.3%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	2.8%
Two or more races	1.8%	4.2%
Hispanic or Latino	3.2%	1.4%

Educational attainment (age 25+)

Share of adults 25+

	Petersburg	South Rockwood
No high school diploma	7.1%	5.4%
High school graduate	34.3%	40.9%
Some college or associate's	40.4%	34.7%
Bachelor's degree	12.8%	10.2%
Graduate or professional degree	5.4%	8.8%

Commute to work

How workers get to work (share)

	Petersburg	South Rockwood
Drove alone	77.7%	87.4%
Carpooled	6.2%	4.8%
Public transit	0.0%	0.0%
Walked	0.3%	0.5%
Bicycle	0.0%	0.0%
Worked from home	12.6%	6.7%
Other means	3.2%	0.5%

Housing

Units in structure (share)

	Petersburg	South Rockwood
1-unit, detached	92.8%	66.5%
1-unit, attached	1.7%	6.3%
2 to 4 units	3.9%	6.8%
5 to 19 units	1.7%	15.2%
20 or more units	0.0%	5.1%
Mobile home & other	0.0%	0.0%

Poverty & households

	Petersburg	South Rockwood
Poverty rate	4.0%	14.1%
Average household size	2.66	2.43
Mean commute (minutes)	28	29
Median year structure built	1952	1981