Galesburg, IL land: flood and parcels
12,607 parcels
On the county tax roll
- Acres on the roll8,560
- In a FEMA flood zone2%special flood hazard area
Illinois 2026 taxes are billed in 2027: the first installment is due no earlier than June 1, 2027.
Sources: Illinois Property Tax Code 35 ILCS 200/21-15, 35 ILCS 200/21-25, 35 ILCS 200/21-30 and 35 ILCS 200/16-55. Checked Oct 13, 2026.
Free account: 25 parcel cards a day on the map, with sale history, road access and elevation. Get started free
Our map has no zoning layer for Galesburg yet. Ask the city's or Knox County's planning office which zoning applies to a parcel.
Around Galesburg
Parcels to start with
Flood zones and wetlands
Recorded flood claims in Galesburg
23 insured flood claims were recorded in and around Galesburg from 1978 to Sep 2026; fewer than 10 were on buildings rated outside the mapped flood zone (zone X, B or C). FEMA paid $133,000 on them in total.
| Years | Claims |
|---|---|
| 1978–79 | Fewer than 10 |
| 1980–89 | Fewer than 10 |
| 1990–99 | Fewer than 10 |
| 2000–09 | Fewer than 10 |
| 2010–19 | Fewer than 10 |
| 2020–26 | Fewer than 10 |
Area statistics for buildings with NFIP flood insurance, not any one parcel: a lot that never had an insured building has no claims to count. OpenFEMA NFIP Redacted Claims v3, as of Sep 2026.
What flood insurance costs in Galesburg
What NFIP policyholders in and around Galesburg pay a year for a single-family home, by flood zone: the middle half of premiums on policies that took effect Sep 2025–Sep 2026. It is what insured homes here pay, not a quote for any one building.
| Flood zone | Policies | Middle half | Full-risk median |
|---|---|---|---|
| A zones (special flood hazard area) | 12 | $1,040–$1,320 | $1,150 |
| X zone (outside the mapped flood zone) | Fewer than 10 | Not shown | Not shown |
Full-risk premium: the median of FEMA's own full-risk premium for the same policies (Risk Rating 2.0). A discounted policy rises toward it a step each year, within the law's cap on yearly increases. Zones are the flood zone each policy is rated in. OpenFEMA NFIP Redacted Policies v3, as of Sep 2026.
Counted in the 26 census block groups that lie mostly inside Galesburg, so the edges may reach past the town line. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data.
People and new homes in Galesburg
- Population28,581July 2025 estimate, −4.6% since 2020
- Median household income$48,2972020–2024 average, ±$3,539
- New homes permitted12025, 1 single-family; 1 in 2021
U.S. Census Bureau, Population Estimates Program, Vintage 2025 (May 2026); U.S. Census Bureau, American Community Survey 2020-2024 5-year (B19013) (Jan 2026); U.S. Census Bureau, Building Permits Survey (Sep 2026).
Illinois land market report · Illinois land prices by quarter
Land in Galesburg by useLand use on the county roll
| Land class | Parcels | Share |
|---|---|---|
| Building on record | 11,344 | 90% |
| Institutional | 613 | 4.9% |
| Other or not coded | 573 | 4.5% |
| Farm and timber | 77 | 0.6% |
77 farm and timber parcels cover 1,089 acres. County tax roll, as of Oct 2026; land class read from the roll's land-use and building fields.
Typical lot sizeThe typical lot, from the roll
The median parcel in Galesburg is 0.25 acre (12,607 parcels with a size).
Acres from the county roll, or from the parcel's own outline where the roll's figure is off by more than three times. Condominium units that share one point (each carrying the whole complex's acres) are left out of the lot sizes.
Land parcels in GalesburgFarm and timber parcels to start with
- 23.4 acres of farm and timber land
- 19.9 acres of farm and timber land
- 3445 N Seminary St 19.5 acres
- 18.9 acres of farm and timber land
- 18.0 acres of farm and timber land
- 17.7 acres of farm and timber land
- 17.3 acres of farm and timber land
- 432 N Linwood Rd 15.2 acres
- 13.7 acres of farm and timber land
Farm and timber parcels of an acre or more, each with its own page of public roll facts.
Nearby townsTowns around it
Questions about Galesburg landAnswers from the public records
How many parcels are in Galesburg, IL?
12,607 parcels on the Knox County parcel layer (pulled Oct 2026), covering 8,560 acres.
Is vacancy verified in Galesburg, IL?
Vacancy not verified: each parcel page says whether the county roll or building footprints show a building.
What is the typical lot size in Galesburg?
The median parcel is 0.25 acre, from 12,607 parcels with a recorded size.
How much of Galesburg is in a flood zone?
2% of parcels are in a FEMA special flood hazard area (National Flood Hazard Layer, as of Oct 2026). Check each parcel's own flood line before you buy.
Are there wetlands in Galesburg?
0.2% of parcels are a quarter or more wetland on the USFWS National Wetlands Inventory, a mapping guide, not a legal delineation.
What is Galesburg zoned?
Our map has no zoning layer for Galesburg yet. Ask the city's or Knox County's planning office which zoning applies to a parcel.
How many people live in Galesburg?
About 28,581 (Census estimate for July 1, 2025), −4.6% since 2020.
How many new homes are being built in Galesburg?
Building permits authorized 1 new housing units in 2025 (Census Building Permits Survey).
Where does this data come from?
Parcels: Knox County parcels: Knox County, Illinois GIS (county ArcGIS Server) (layer as of Apr 2025). Flood: FEMA National Flood Hazard Layer. Wetlands: USFWS National Wetlands Inventory. Towns: U.S. Census places. Every figure is counted from those files on our map.
More in Knox CountyIts other towns
About these numbersSources, dates and how these figures are built
Sources
Parcels: Knox County parcels: Knox County, Illinois GIS (county ArcGIS Server) (layer as of Apr 2025) (pulled Oct 2026); flood: FEMA National Flood Hazard Layer (as of Oct 2026); wetlands: USFWS National Wetlands Inventory (as of Oct 2026); town limits: U.S. Census Bureau TIGER/Line places; sales: the county's own file, through Sep 2026; counted on our map built Oct 2026.