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HomeOhioSeneca County

Seneca County, Ohio: commercial real estate data.

Seneca County, Ohio has a population of 54,770 across 551 square miles, down 0.6 percent since the 2020 census base. County output reached $2.75 bn in 2024, 1,053 establishments operate here, and the SBA record carries 67 7(a) approvals worth $17.4 m.

127 sourced county values · tier FULL · 12 sections

Seneca County

How many people live in Seneca County

  • Population54,770
  • Households22,279
  • Average household size2.46
  • Median household income$66,025
  • Median age40.2
  • Median gross rent$856 per month
  • Median owner-occupied home value$154,700
  • Home value to household income2.3 times
  • Annual rent as a share of median income15.6 percent
  • Adults 25 and over with a bachelor degree or higher20.6 percent
  • Adults 25 and over with a graduate degree7.6 percent
  • Adults 25 and over37,157
  • Population under 1811,728
  • Share under 1821.4 percent
  • Population 65 and over10,538
  • Share 65 and over19.2 percent
  • Working age population, 18 to 6432,504
  • Civilian labor force27,536
  • Unemployment rate3.6 percent
  • Labor force participation, adults 18 and over64.0 percent
  • Rank by population among Ohio counties47th of 88
  • Rank by population among US county-equivalents950th

Seneca County is the 47th largest of 88 Ohio counties by population. A median home costs 2.3 times median household income, which is an affordable ownership market by national standards. Residents under 18 outnumber those 65 and over, at 21.4 percent against 19.2 percent, a household formation profile rather than a retirement one.

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

Seneca County

Is Seneca County growing

  • Population change since the 2020 census base-0.63 percent
  • Census 2020 base population55,076
  • Births, 2024593
  • Deaths, 2024612
  • Natural change, 2024-19
  • Net domestic migration, 2024-11
  • Net international migration, 2024134
  • Total net migration, 2024123
  • Cumulative net domestic migration, 2021 to 2024-264
  • Rank by growth among US county-equivalents2066th

The county has lost 0.63 percent of its population since the 2020 census base. Deaths exceeded births in 2024, so all of the growth came from people moving in. A market held up by migration alone is more sensitive to a change in relative cost than one growing from household formation.

US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

Seneca County

Where people moving to Seneca County come from

  • Tax returns filed by households arriving1,073
  • People arriving, from those returns1,847
  • Adjusted gross income arriving$51.2 m
  • Net adjusted gross income movement$0
  • Average income of an arriving household$47,698
  • Largest single originSeneca County Non-migrants (21,738 households)
  • Largest single destination (21,738 households)
Largest origins of households moving into Seneca County
OriginHouseholdsPeopleAdjusted gross income
Seneca County Non-migrants21,73841,821$1.35 bn
Hancock County193369$9.8 m
Other flows - Different State183303$10.8 m
Sandusky County170306$6.3 m
Other flows - Same State165277$7.5 m
Wood County104179$4.2 m
Other flows - South102169$5.4 m
Wyandot County6599$2.7 m

The largest single source of arrivals is Seneca County Non-migrants, which is the catchment a retail or multifamily study should look at first.

US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Seneca County

What the Seneca County economy runs on

  • County GDP, 2024$2.75 bn
  • County GDP, 2023$2.71 bn
  • GDP change, 2023 to 20241.5 percent
  • GDP change over five years30.2 percent
  • Rank by GDP among Ohio counties53rd
  • Rank by GDP among US county-equivalents1042nd
  • GDP per resident$50,271

Output grew 1.5 percent in the latest year and 30.2 percent over five, which is the trend line a lender will read behind any single year figure.

US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024.

Seneca County

Who employs people in Seneca County

  • Covered employment, annual average19,092
  • Establishments reporting1,256
  • Average annual pay$49,201
  • Average weekly wage$946
  • Sector 31-33, employment4,507
  • Sector 31-33, average annual pay$65,620
  • Sector 62, employment2,310
  • Sector 62, average annual pay$47,888
  • Sector 44-45, employment2,228
  • Sector 44-45, average annual pay$33,098
  • Sector 72, employment2,078
  • Sector 72, average annual pay$17,207
  • Sector 23, employment845
  • Sector 61, employment750
Private sector employment and pay, Seneca County
SectorEmploymentEstablishmentsAverage annual pay
Sector 31-334,50776$65,620
Sector 622,310170$47,888
Sector 44-452,228153$33,098
Sector 722,078112$17,207
Sector 23845106$69,588
Sector 6175014$43,224
Sector 4262057$61,033
Sector 81608106$27,382

The largest sector is the biggest private employer group at 4,507 jobs, 23.6 percent of covered employment. Average pay per job sits below median household income, so households here typically need more than one earner.

US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

Seneca County

What businesses operate in Seneca County

  • Establishments, all industries1,053
  • Employment at those establishments16,258
  • Annual payroll$724.8 m
  • Establishments per 1,000 residents19.2

These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against.

US Census Bureau, County Business Patterns, 2023.

Seneca County

What is being built in Seneca County

  • Housing units authorised by permit, 202443
  • Declared construction value permitted$11.3 m
  • Single family units authorised39
  • Multifamily units authorised4
  • Multifamily share of units9.3 percent
  • Average declared value per unit$263,301
  • Units authorised per 1,000 households1.9

Multifamily is 9.3 percent of units authorised, so the pipeline is predominantly for sale product.

US Census Bureau, Building Permits Survey, 2024 annual.

Seneca County

How much SBA lending happens in Seneca County

  • 7(a) approvals recorded67
  • 7(a) gross approval dollars$17.4 m
  • Average 7(a) approval$259,709
  • Median 7(a) approval$100,000
  • 10th percentile approval$23,200
  • 90th percentile approval$625,000
  • Largest single approval$2,135,400
  • Jobs reported supported, 7(a)485
  • Jobs per approval7.2
  • Distinct 7(a) lenders active20
  • Distinct industries receiving approvals38
  • Median 7(a) term120 months
  • Share of loans on real estate terms, 240 months or longer14.9 percent
  • Loans on real estate terms10
  • Loans on working capital terms, 120 months or shorter56
  • Franchise loans6
  • Franchise share of approvals9.0 percent
  • Leading industry by approval countGeneral Freight Trucking, Long-Distance, Truckload (8)
  • Most active lenderThe Huntington National Bank (22)
  • 504 approvals recorded17
  • 504 gross approval dollars$7.3 m
  • Average 504 approval$429,706
  • Median 504 approval$279,000
  • Distinct CDCs active4
  • 504 jobs per approval6.3
  • 504 jobs per million dollars approved14.6
  • Most active CDCNorthwest Ohio Development Assistance Corporation (6)
  • 7(a) share of SBA approvals79.8 percent
  • Combined SBA approval dollars$24.7 m

The average approval of $259,709 sits well above the median of $100,000, so a small number of large deals is pulling the mean up. The median is the better guide to what a typical borrower here actually gets. Only 14.9 percent of approvals run on real estate terms, so SBA credit here is mostly working capital and equipment rather than property acquisition.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

Seneca County

Do SBA loans in Seneca County get paid back

  • Loans with a final outcome recorded20
  • Paid in full20
  • Charged off0
  • Charge off rate on resolved loans0.0 percent
  • Status: Exempt from disclosure40
  • Status: Cancelled5
  • Status: Paid in full20
  • Status: Committed, not yet disbursed2

Of the 20 loans that have reached a final outcome, 0.0 percent were charged off. This is computed only over resolved loans, because a loan still running has not yet succeeded or failed and counting it either way would be wrong.

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

Seneca County

Which parts of Seneca County get the lending

  • Places in the county with recorded lending9
  • TIFFIN, approvals39
  • Fostoria, approvals18
  • Kansas, approvals2
  • GREEN SPRINGS, approvals2
  • ATTICA, approvals2
  • NEW RIEGEL, approvals1
SBA 7(a) approvals by place within Seneca County
PlaceApprovalsGross approval dollars
TIFFIN39$9,995,300
Fostoria18$5,653,100
Kansas2$655,000
GREEN SPRINGS2$123,900
ATTICA2$498,000
NEW RIEGEL1$250,000
CLYDE1$113,200
BLOOMVILLE1$77,000

TIFFIN accounts for 39 approvals against 18 in Fostoria. County level figures average over that gap, which is why a site decision is made at the submarket rather than the county.

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

Seneca County

How big is Seneca County

  • Land area551 sq mi
  • Rank by land area among Ohio counties16th of 88
  • Width, east to west30.8 mi
  • Height, north to south18.2 mi
  • Geographies sharing a boundary6
  • Residents per square mile of land99
  • Establishments per square mile1.91

US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year. US Census Bureau, County Business Patterns, 2023.

Seneca County

What hazards affect Seneca County

  • EPA radon zone predicted average indoor radon screening level greater than 4 pCi/LZone 1
  • Communities in the NFIP Community Status Book6
  • Of those, participating in the NFIP5
  • NFIP participation rate83.3 percent
  • Communities carrying a CRS class0

The EPA places the county in radon zone 1, a predicted average indoor radon screening level greater than 4 pCi/L.

US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001. FEMA OpenFEMA, NFIP Community Status Book, Community Status Book, as retrieved.

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.

  • Flood zone record counts are not held. The flood coverage export has not landed, so no count is shown rather than an estimated one.
  • Traffic counts resolve in the platform, not in this dataset, so no AADT figure is printed here.
  • Zoning is in build. Parcel level zoning is not published on this page.

Feasibility studies

When a Seneca County site needs a document a lender will accept.

The same data layer behind this page is the one the studies are written from. A study for a Seneca County site starts with the figures you are reading, carrying the same source and period into the credit file.

  • Population54,770
  • Households22,279
  • Average household size2.46
  • Median household income$66,025
  • Median age40.2

How a feasibility study works →

Common questions

Seneca County questions, answered from the record.

How many people live in Seneca County, Ohio?

54,770, in 22,279 households, ranking 47th of 88 Ohio counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

Is Seneca County growing?

The population has fallen 0.63 percent since the 2020 census base. In 2024 there were 593 births against 612 deaths, with net migration of 123. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

What is the median household income in Seneca County?

$66,025. The median owner-occupied home is valued at $154,700, which is 2.3 times income, and median gross rent is $856 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

How many businesses are there in Seneca County?

1,053 establishments, employing 16,258 people with an annual payroll of $724.8 m. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.

What is the average wage in Seneca County?

Average annual pay is $49,201, or $946 a week, across 19,092 covered jobs. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

How much SBA lending happens in Seneca County?

67 7(a) approvals totalling $17.4 m since FY2020, across 20 lenders, with a median approval of $100,000, plus 17 504 approvals worth $7.3 m. These are approvals recorded in the release, not loans disbursed.

Do SBA loans in Seneca County get paid back?

Of the 20 loans that have reached a final outcome, 20 were paid in full and 0 charged off, a charge off rate of 0.0 percent. Loans still running are excluded, because they have not yet succeeded or failed.

What is being built in Seneca County?

43 housing units were authorised by permit in 2024, with a declared construction value of $11.3 m. Multifamily was 9.3 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.

What is the radon zone for Seneca County?

Zone 1, a predicted average indoor radon screening level greater than 4 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.

Where do people moving to Seneca County come from?

The largest single origin is Seneca County Non-migrants, with 21,738 households. Arriving households report an average income of $47,698 against null for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Are traffic counts available for Seneca County on this page?

No. Annual average daily traffic resolves in the platform rather than in this dataset, so no AADT figure is printed here. It is a gap we know about rather than a figure we estimated.

Is zoning published for Seneca County?

Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame with confirm locally attached.

Nearby

Sharing a boundary with Seneca.

All Ohio county pages →

How this page was built →