HomeMichiganMonroe CountyPetersburg
Petersburg, Michigan: commercial real estate data.
Petersburg is a Census city of 1,179 people across 0.48 square miles of land, in Monroe County. Median household income is $83,235, 80.9 percent of occupied homes are owned, and the SBA record carries 9 7(a) approvals to borrowers here worth $403,700 since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Petersburg
What Petersburg is
- Census place typecity
- Land area0.48 sq mi
- Water area0.01 sq mi
- Population per square mile of land2,442
- County holding the largest share of its areaMonroe County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Petersburg
How many people live in Petersburg
- Population1,179
- Median age37.8
- Population under 18256 plus or minus 117
- Share under 1821.7 percent plus or minus 9.2
- Population 65 and over138 plus or minus 47
- Share 65 and over11.7 percent plus or minus 3.5
- Households450
- Family households330
- Share of households that are families73.3 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Petersburg
Income and work in Petersburg
- Median household income$83,235
- Per capita income$37,062
- Civilian labor force688
- Employed676
- Unemployed12 plus or minus 12
- Unemployment rate1.7 percent plus or minus 1.7
- Adults 25 and over798
- Adults 25 and over with a high school diploma or higher94.0 percent
- Adults 25 and over with a bachelor degree or higher15.7 percent plus or minus 4.8
- Adults 25 and over with a graduate degree4.5 percent plus or minus 2.8
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Petersburg
Housing in Petersburg
- Housing units453
- Occupied units450
- Vacant units3 plus or minus 5
- Vacancy rate0.7 percent plus or minus 1.1
- Owner occupied364
- Renter occupied86 plus or minus 31
- Ownership rate80.9 percent
- Median owner-occupied home value$215,500
- Median gross rent, monthly$1,012
- Annual rent as a share of median income14.6 percent plus or minus 2.9
- Single family units415
- Share single family91.6 percent
- Units in buildings of two or more38 plus or minus 24
- Share in buildings of two or more8.4 percent plus or minus 5.2
- Mobile homes0
- Median year structure built1955
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Petersburg
How Petersburg gets to work
- Workers 16 and over who commute596
- Commuting under 15 minutes151 plus or minus 69
- Share commuting under 15 minutes25.3 percent plus or minus 10.8
- Commuting 30 minutes or more315 plus or minus 79
- Share commuting 30 minutes or more52.9 percent
- Drove alone80.0 percent
- Carpooled5.4 percent plus or minus 3.0
- Public transport0.0 percent
- Walked0.7 percent plus or minus 0.9
- Worked from home11.2 percent plus or minus 6.2
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Petersburg
SBA loans in Petersburg (7(a))
- Approvals9
- Gross approval$403,700
- Average approval$44,856
- Median approval$50,000
- Largest approval$93,100
- Jobs supported40
- Jobs per approval4.4
- Loans with a final outcome1
- Paid in full1
- Charged off0
- Median term120 months
- Share on real estate terms of 20 years or more0.0 percent
- Share to franchises0.0 percent
- Distinct lenders3
- Distinct industries by NAICS7
Counted by borrower city: approvals to borrowers whose address is in Petersburg, in any county, FY2020 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Petersburg
SBA loans in Petersburg (504)
- Approvals1
- Gross approval$279,000
- Average approval$279,000
- Median approval$279,000
- Largest approval$279,000
- Jobs supported5
- Loans with a final outcome1
- Charged off0
- Median term120 months
- Distinct CDCs1
Counted by borrower city: approvals to borrowers whose address is in Petersburg, in any county, FY2010 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Petersburg
Flood risk in Petersburg
- NFIP communityCity of Petersburg
- NFIP community number260288
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date04/20/00
The City of Petersburg participates in the National Flood Insurance Program as community 260288 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Monroe County, not Petersburg
Monroe County context, not Petersburg figures
- Establishments in Monroe County2,395
- Covered employment, Monroe County41,159
- Average annual pay, Monroe County$60,516
- Housing units permitted, Monroe County237
Every figure in this section is published for Monroe County as a whole and is not a measurement of Petersburg.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Petersburg questions, answered from the record.
How many people live in Petersburg, Michigan?
1,179, in 450 households. Petersburg city covers 0.48 square miles of land, which is 2,442 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Petersburg in?
Monroe County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Petersburg?
$83,235. The median owner-occupied home is valued at $215,500. Median gross rent is $1,012 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Petersburg businesses?
9 7(a) approvals totaling $403,700 since FY2020, across 3 lenders, median approval $50,000, plus 1 504 approvals worth $279,000 since FY2010. These count approvals to borrowers whose address is in Petersburg, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Petersburg borrowers get paid back?
No rate is published for Petersburg. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Is Petersburg in the National Flood Insurance Program?
Yes. Petersburg appears in the FEMA Community Status Book as Petersburg, city of, community 260288, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Petersburg figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Monroe County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Petersburg.
Is zoning published for Petersburg?
No. Nothing on this page presents parcel level zoning.