Grundy County, Iowa: commercial real estate data.
Grundy County, Iowa had an estimated 12,405 residents on July 1, 2024, up 0.5 percent since the 2020 census base of 12,339, across 502 square miles. County output reached $731.7 m in 2024, 299 establishments operate here, and the SBA record carries 9 7(a) approvals worth $3.7 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Grundy County
How many people live in Grundy County
- Population, American Community Survey 2020-202412,384
- Households5,117
- Average household size2.42
- Median household income$87,205
- Median age41.9
- Median gross rent$774 per month
- Median owner-occupied home value$198,800
- Home value to household income2.3 times
- Annual rent as a share of median income10.7 percent
- Adults 25 and over with a bachelor degree or higher27.8 percent
- Adults 25 and over with a graduate degree7.4 percent
- Adults 25 and over8,643
- Population under 182,905
- Share under 1823.5 percent
- Population 65 and over2,600
- Share 65 and over21.0 percent
- Working age population, 18 to 646,879
- Civilian labor force6,442
- Unemployment rate2.0 percent
- Labor force participation, adults 18 and over68.0 percent
- Rank by population among Iowa counties60th of 99
- Rank by population among US county-equivalents, Puerto Rico included2331st of 3,222
Grundy County is the 60th largest of 99 Iowa counties by population. A median home costs 2.3 times median household income, which is affordable by national standards. Residents under 18 outnumber those 65 and over, at 23.5 percent against 21.0 percent, a household formation profile rather than a retirement one.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Grundy County
Is Grundy County's population growing?
- Population, July 1, 202412,405
- Census 2020 base population12,339
- Population change since the 2020 census base0.53 percent
- Population change, 2023 to 2024-7
- Births, 2024135
- Deaths, 2024151
- Natural change, 2024-16
- Net domestic migration, 2024-24
- Net international migration, 202433
- Total net migration, 20249
- Cumulative net domestic migration, 2021 to 202467
- Rank by growth among US county-equivalents1642nd of 3,144
The county has grown 0.53 percent since the 2020 census base. Deaths exceeded births in 2024 by more than net migration added, so the population fell even though more people moved in than left.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
Grundy County
Where are people moving to Grundy County from?
- Tax returns filed by households arriving291
- People arriving, from those returns567
- Tax returns filed by households leaving298
- Net household movement-7
- Adjusted gross income arriving$17.4 m
- Net adjusted gross income movement$1.8 m
- Average income of an arriving household$59,828
- Average income of a leaving household$52,302
- Largest single originBlack Hawk County (84 households)
- Largest single destinationBlack Hawk County (90 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Black Hawk County | 84 | 173 | $6.0 m |
| Butler County | 34 | 76 | $2.1 m |
| Hardin County | 22 | 33 | $771,000 |
| Tama County | 20 | 41 | $881,000 |
Households arriving report $7,526 more average income than households leaving, so the migration is raising local spending power rather than just moving it around. The largest single source of arrivals is Black Hawk County, 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.
Grundy County
What is the Grundy County economy?
- County GDP, 2024$731.7 m
- County GDP, 2023$747.7 m
- GDP change, 2023 to 2024-2.1 percent
- GDP change over five years36.1 percent
- Rank by GDP among the Iowa areas BEA publishes69th of 99
- Rank by GDP among the US county areas BEA publishes2099th of 3,127
- GDP per resident$59,082
Output grew -2.1 percent in the latest year and 36.1 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.
Grundy County
Employment by industry in Grundy County
- Covered employment, annual average4,147
- Establishments reporting389
- Average annual pay$58,116
- Average weekly wage$1,118
- Construction, employment666
- Construction, average annual pay$83,202
- Agriculture, forestry, fishing and hunting, employment357
- Agriculture, forestry, fishing and hunting, average annual pay$62,942
- Retail trade, employment323
- Retail trade, average annual pay$28,702
- Wholesale trade, employment249
- Wholesale trade, average annual pay$82,888
- Manufacturing, employment211
- Other services, except public administration, employment139
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Construction | 666 | 39 | $83,202 |
| Agriculture, forestry, fishing and hunting | 357 | 45 | $62,942 |
| Retail trade | 323 | 30 | $28,702 |
| Wholesale trade | 249 | 42 | $82,888 |
| Manufacturing | 211 | 12 | $62,847 |
| Other services, except public administration | 139 | 17 | $52,709 |
| Administrative and support and waste management services | 118 | 16 | $59,065 |
| Accommodation and food services | 107 | 16 | $13,569 |
Construction is the largest private sector at 666 jobs, 16.1 percent of covered employment.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
Grundy County
How many businesses are in Grundy County?
- Establishments, all industries299
- Employment at those establishments2,942
- Annual payroll$186.8 m
- Establishments per 1,000 residents24.1
These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against. County Business Patterns counts private establishments with paid employees in March 2023, while the Quarterly Census of Employment and Wages above counts every unemployment-insured employer, public ones included, as a 2024 annual average, so the two establishment and employment counts differ.
US Census Bureau, County Business Patterns, 2023.
Grundy County
Building permits in Grundy County
- Housing units authorized by permit, 202411
- Declared construction value permitted$4.8 m
- Single family units authorized8
- Multifamily units authorized3
- Multifamily share of units27.3 percent
- Average declared value per unit$440,377
- Units authorized per 1,000 households2.1
Single-family homes are 72.7 percent of units authorized, so the pipeline is predominantly single-family.
US Census Bureau, Building Permits Survey, 2024 annual.
Grundy County
SBA loans in Grundy County (7(a) and 504)
- 7(a) approvals recorded9
- 7(a) gross approval dollars$3.7 m
- Average 7(a) approval$412,500
- Median 7(a) approval$100,000
- Largest single approval$2,850,000
- Jobs reported supported, 7(a)97
- Jobs per approval10.8
- Distinct 7(a) lenders active5
- Distinct industries receiving approvals5
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer11.1 percent
- Loans on real estate terms1
- Loans on working capital terms, 120 months or shorter6
- Franchise loans0
- Franchise share of approvals0.0 percent
- Leading industry by approval countFull-Service Restaurants (4)
- Most active lenderFarmers State Bank (3)
- 504 approvals recorded6
- 504 gross approval dollars$2.1 m
- Average 504 approval$342,167
- Median 504 approval$226,500
- Distinct CDCs active1
- 504 jobs per approval12.8
- 504 jobs per million dollars approved37.5
- Most active CDCBlack Hawk Economic Development, Inc. (6)
- Combined SBA approval dollars, 7(a) FY2020 to FY2026 and 504 FY2010 to FY2026$5.8 m
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.
Grundy County
SBA loan default and charge-off rates in Grundy County
Do SBA loans in Grundy County get paid back?
- Loans with a final outcome recorded2
- Paid in full2
- Charged off0
- Status: Paid in full2
- Status: Exempt from disclosure6
- Status: Cancelled1
Only 2 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Grundy County
SBA lending by place in Grundy County
- Borrower cities with recorded lending6
- Conrad, approvals3
- Beaman, approvals2
- Grundy Center, approvals1
- Reinbeck, approvals1
- Hudson, approvals1
- Dike, approvals1
| Borrower city | Approvals | Gross approval dollars |
|---|---|---|
| Conrad | 3 | $300,000 |
| Beaman | 2 | $3,100,000 |
| Grundy Center | 1 | $150,000 |
| Reinbeck | 1 | $102,000 |
| Hudson | 1 | $50,000 |
| Dike | 1 | $10,500 |
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Grundy County
How large is Grundy County?
- Land area502 sq mi
- Rank by land area among Iowa counties70th of 99
- Width, east to west25.2 mi
- Height, north to south24 mi
- Geographies sharing a boundary5
- Residents per square mile of land25
- Establishments per square mile0.60
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.
Grundy County
Flood risk in Grundy County
- Participation of the county's own NFIP community Grundy County, unincorporated areasParticipating, community 190870
- Communities in the county in the NFIP Community Status Book9
- Of those, participating in the NFIP8
- NFIP participation rate88.9 percent
- Communities carrying a CRS class0
- Radon levels in Grundy County, EPA zone predicted average indoor radon screening level greater than 4 pCi/LZone 1
The county's own community in the status book, unincorporated Grundy County (community 190870), participates in the National Flood Insurance Program and carries no Community Rating System class, so no CRS premium discount applies there. The EPA places Grundy County in radon zone 1, a predicted average indoor radon screening level greater than 4 pCi/L. The zone is a screening prediction for the county and does not substitute for a test at an address. 88.9 percent of the county's listed communities participate in the National Flood Insurance Program, per Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26. US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Coverage
What this page does not hold.
Traffic counts, 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 →
Feasibility studies
When a Grundy 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 Grundy County site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population, American Community Survey 2020-202412,384
- Households5,117
- Average household size2.42
- Median household income$87,205
- Median age41.9
Common questions
Grundy County questions, answered from the record.
How many people live in Grundy County, Iowa?
The Census Bureau estimates 12,405 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 12,384, in 5,117 households, ranking 60th of 99 Iowa counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is Grundy County's population growing?
The population has grown 0.53 percent since the 2020 census base of 12,339, to 12,405 on July 1, 2024. In 2024 there were 135 births against 151 deaths, with net migration of 9. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in Grundy County?
$87,205. The median owner-occupied home is valued at $198,800, which is 2.3 times income, and median gross rent is $774 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are in Grundy County?
299 establishments, employing 2,942 people with an annual payroll of $186.8 m. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.
What is employment by industry in Grundy County?
Construction is the largest private sector at 666 jobs, 16.1 percent of covered employment. Covered employment averages 4,147 jobs at an average annual pay of $58,116, or $1,118 a week. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in Grundy County?
9 7(a) approvals totaling $3.7 m since FY2020, across 5 lenders, with a median approval of $100,000, plus 6 504 approvals worth $2.1 m since FY2010. These are approvals recorded in the release, not loans disbursed.
How many building permits were issued in Grundy County?
11 housing units were authorized by permit in 2024, with a declared construction value of $4.8 m. Multifamily was 27.3 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for Grundy 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 Grundy County come from?
The largest single origin is Black Hawk County, with 84 households. Arriving households report an average income of $59,828 against $52,302 for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Are traffic counts available for Grundy 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 Grundy County?
No. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame, to be confirmed locally.
Grundy County
Cities and places in Grundy.
9 Census places lie wholly or partly in Grundy County. All 9 carry enough published place level data for a page of their own and are linked.
| Place | Type | Population | SBA 7(a) approvals, projects in this county | Lies in |
|---|---|---|---|---|
| Grundy Center | city | 2,809 | 1 | Wholly in this county |
| Reinbeck | city | 1,715 | 1 | Wholly in this county |
| Dike | city | 1,365 | 1 | Wholly in this county |
| Conrad | city | 1,191 | 3 | Wholly in this county |
| Wellsburg | city | 673 | None recorded | Wholly in this county |
| Holland | city | 327 | None recorded | Wholly in this county |
| Stout | city | 296 | None recorded | Wholly in this county |
| Beaman | city | 125 | 2 | Wholly in this county |
| Morrison | city | 96 | None recorded | Wholly in this county |
A further 1 of the county's 9 SBA 7(a) approvals are to borrowers in cities that match no Census place in Grundy County, the largest being Hudson (1). Those are postal cities, unincorporated areas and cities outside the county, so no place row claims them; they are counted in the county total above.
Nearby