Blog · October 14, 2026 · Illinois
Rock Island County Township Map in Illinois
How to tell which township a parcel in Rock Island County sits in, and what that means near Andalusia.
Main page: Rock Island County, IL GIS & Parcel Viewer (official map link, Rock Island County facts and neighboring maps).
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A Rock Island County township map search near East Moline frequently starts with a tax bill or a deed that names a township. Below we sort out the kinds of townships in Rock Island County and where to see each one.
How to use the Rock Island County township map
A township name on a county tax record refers to the civil township where the land near Coal Valley sits. Separately, Illinois land near Coal Valley follows the federal survey grid, in which each township is about 36 square miles, split into 36 sections of about 640 acres.
Finding the tract on the Rock Island County map
The county's own public map is the Rock Island County parcel viewer, and it opens without an account for parcels in East Moline and the rest of the county. Click any Rock Island County parcel near East Moline to open its record: owner, parcel ID and assessed acreage are usually listed. If the official address for the Rock Island County, IL map ever changes, our directory page carries the current link for East Moline and the rest of the county.
How to look up a township in Rock Island County
Open the Rock Island County parcel viewer and look in the layer list for township or municipal boundaries; click a parcel near Coal Valley and the record frequently names the township. For the survey grid, look for section, township and range in the legal description on the Rock Island County record.
Sections, quarters and roads in Rock Island County
On a grid map of Rock Island County, section 1 sits in the northeast corner of a fresh survey township, with the count snaking back and forth to 36 in the southeast. Aliquot descriptions for land near Campbell's Island are read from the end: find the last quarter named first, then work inward. Water, old surveys and corrections can leave odd-sized lots along section edges in Rock Island County.
Old names and overlapping districts in Rock Island County
Older deeds near Silvis may name a township differently than today's Rock Island County records, so compare the legal description too. Election maps, school districts and fire districts in Rock Island County don't always follow township lines near Moline, so check each one separately.
The Rock Island County economy in brief
Rock Island County's 2022 business count was 3,036 establishments, with retail trade, health care and social assistance, and accommodation and food services the largest groups. Compared with national shares, Rock Island County leans toward utilities and mining (except oil and gas), which shapes demand for land near Carbon Cliff.
Towns and land across Rock Island County
From Rock Island, the seat of the county, the map spreads out to East Moline, Moline, Silvis, and Andalusia. Unincorporated communities in the county, including Barstow, Buffalo Prairie, and Campbell's Island, show up as small groups of parcels along the roads. Roughly 427 square miles of land and about 141,236 residents (2023 estimate) make up Rock Island County. Subdivision lots dominate the county map around Andalusia, and open tracts are scarce. With a founding date of 1831, Rock Island County has long chains of title on some rural tracts.
Taxes, permits and township lines
For a parcel near Andalusia, township lines affect tax bills, local permits and voting precincts, and the county record is the better guide than an address. Assessment and tax districts in Rock Island County are frequently tied to the township, so two neighboring parcels near Coal Valley can carry different rates.
Questions about the Rock Island County township map
What is a fresh survey township in Rock Island County?
It's a Public Land Survey System block about 6 miles square with 36 sections, used to describe Rock Island County land.
Does a Rock Island County mailing town match the township?
Postal towns and township lines in Rock Island County don't always match; the parcel record shows the township for taxes.
How do I find what township a property in Rock Island County is in?
Look up the address on the Rock Island County parcel map and read the township field, or turn on township boundaries.
Does the Rock Island County GIS map show township lines?
Many county viewers include a township or municipal boundary layer; check the layer list on the Rock Island County map.
How many acres is a section in Rock Island County?
Roughly 640 acres per section in Rock Island County; real sections vary a bit because of survey corrections.
Open the official Rock Island County, IL parcel map Rock Island County in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.