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HomeIllinoisMenard CountyPetersburg city

Petersburg city, Illinois: commercial real estate data.

Petersburg city is a Census city of 2,341 people across 1.56 square miles of land, in Menard County. Median household income is $56,458, 61.0 percent of occupied homes are owned, and the SBA record carries 4 7(a) approvals to borrowers here worth $504,600.

80 sourced place values · tier FULL · 9 sections

Petersburg

What Petersburg is

  • Census place typecity
  • Land area1.56 sq mi
  • Water area0 sq mi
  • Population per square mile of land1,499
  • County holding the largest share of its areaMenard 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

  • Population2,341
  • Median age38.7
  • Population under 18434 plus or minus 107
  • Share under 1818.5 percent plus or minus 3.8
  • Population 65 and over429 plus or minus 98
  • Share 65 and over18.3 percent
  • Households1,150
  • Family households670
  • Share of households that are families58.3 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$56,458 plus or minus $14,417
  • Per capita income$45,576 plus or minus $14,679
  • Civilian labor force1,230
  • Employed1,213
  • Unemployed17 plus or minus 21
  • Unemployment rate1.4 percent plus or minus 1.7
  • Adults 25 and over1,633
  • Adults 25 and over with a high school diploma or higher93.8 percent
  • Adults 25 and over with a bachelor degree or higher30.6 percent plus or minus 10.0
  • Adults 25 and over with a graduate degree15.1 percent plus or minus 9.2

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Petersburg

Housing in Petersburg

  • Housing units1,195
  • Occupied units1,150
  • Vacant units45 plus or minus 35
  • Vacancy rate3.8 percent plus or minus 2.9
  • Owner occupied701
  • Renter occupied449 plus or minus 120
  • Ownership rate61.0 percent
  • Median owner-occupied home value$177,700
  • Median gross rent, monthly$653 plus or minus $238
  • Annual rent as a share of median income13.9 percent plus or minus 6.2
  • Single family units898
  • Share single family75.1 percent
  • Units in buildings of two or more277 plus or minus 112
  • Share in buildings of two or more23.2 percent plus or minus 8.9
  • Mobile homes20 plus or minus 22
  • Median year structure built1964

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 commute1,108
  • Commuting under 15 minutes411 plus or minus 137
  • Share commuting under 15 minutes37.1 percent plus or minus 10.3
  • Commuting 30 minutes or more508 plus or minus 140
  • Share commuting 30 minutes or more45.8 percent plus or minus 9.3
  • Drove alone86.3 percent
  • Carpooled1.6 percent plus or minus 2.1
  • Public transport0.0 percent
  • Walked4.2 percent plus or minus 2.5
  • Worked from home8.0 percent plus or minus 4.7

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Petersburg

SBA 7(a) lending to Petersburg borrowers

  • Approvals4
  • Gross approval$504,600
  • Average approval$126,150
  • Median approval$162,000
  • Ninetieth percentile approval$244,800
  • Largest approval$244,800
  • Jobs supported11
  • Jobs per approval2.8
  • Loans with a final outcome3
  • Paid in full2
  • Charged off1
  • Median term260 months
  • Share on real estate terms of 20 years or more50.0 percent
  • Share to franchises0.0 percent
  • Distinct lenders4
  • Distinct industries by NAICS4

A charge-off rate is not published here. only 3 resolved loans, too few to publish a rate, and a rate over that few outcomes would move several points on one loan.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.

Petersburg

SBA 504 lending to Petersburg borrowers

  • Approvals1
  • Gross approval$147,000
  • Average approval$147,000
  • Median approval$147,000
  • Largest approval$147,000
  • Jobs supported3
  • Loans with a final outcome0
  • Charged off0
  • Median term240 months
  • Distinct CDCs1

US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

Petersburg

Flood programme status in Petersburg

  • Listed NFIP communities1
  • Of those, participating1
  • NFIP community number170506
  • Currently effective map date05/04/09

This community carries no Community Rating System class, so no CRS premium discount applies to it.

FEMA, National Flood Insurance Program Community Status Book, Community Status Book, as retrieved.

Menard County, not Petersburg

Menard County context, not Petersburg figures

These are Menard County figures. There is no place level equivalent published for any of them, so they are shown as the county backdrop and never as Petersburg measurements.

  • Establishments in Menard County207
  • Employment at those establishments, Menard County1,216
  • Covered employment, Menard County1,773
  • Average annual pay, Menard County$42,242
  • Average weekly wage, Menard County$812
  • Housing units permitted, Menard County9
  • Of those, single family, Menard County9
  • County product, 2024, Menard County$364,163,000
  • County product change over the prior year, Menard County3.4 percent
  • Average income of an arriving household, Menard County$57,964

Every figure in this section is published for Menard County as a whole and is not a measurement of Petersburg. It is here because a county backdrop is what a credit committee reads a place against, and it is labelled so that it can never be quoted as the place's own.

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. US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024. US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Coverage

What this page does not hold.

Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.

  • Parcel level detail, zoning and flood zone at an address are resolved in the platform, not on this page.

SBA figures count approvals to borrowers whose address is in the place. They are not approvals for projects inside the place boundary: the tape records a borrower city and a project county, and those can differ.

Common questions

Petersburg questions, answered from the record.

How many people live in Petersburg, Illinois?

2,341, in 1,150 households. Petersburg city covers 1.56 square miles of land, which is 1,499 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?

Menard 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?

$56,458. The median owner-occupied home is valued at $177,700. Median gross rent is $653 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?

4 7(a) approvals totalling $504,600, across 4 lenders, median approval $162,000, plus 1 504 approvals worth $147,000. 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 3 resolved loans, too few to publish a rate, and a percentage over that few outcomes would move several points on a single loan. The counts are shown instead.

Is Petersburg in the National Flood Insurance Program?

Yes. Petersburg appears in the FEMA Community Status Book as community 170506, 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 labelled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Menard 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?

Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning.