Kane County, Illinois has one of the clearest east-west land-cover contrasts in this county map series. Agriculture is the largest 2025 class at 49.99%, while developed land is close behind at 40.23%. Forest accounts for 5.66%, wetlands 2.04%, and water 1.07%. Broad agricultural blocks dominate the west, while the east is covered by much denser development, with a mixed transition zone running through the middle of the county.
This page compares four views: overall land cover, forest and farmland, impervious/developed land, and 1985–2025 class differences. The WebP maps can be viewed directly on the page, and the four original JPG maps are available together in one download. Each view is useful for a different question, from present-day cover and agricultural extent to hard-surface concentration and long-term classification differences.
Table of Contents
Broad farmland in the west gives way to extensive developed cover across the east
The western half of Kane County is dominated by yellow agricultural cover. Fields form large, continuous blocks, interrupted mainly by roads, small settlement patches, and scattered natural cover. The pattern changes toward the middle of the county, where red developed areas become more common and forest, wetlands, and water appear in smaller pieces. By the eastern side, developed cover becomes the dominant visual feature.
Developed land forms broad red areas from the northeast through the east-central and southeast parts of the county. These areas are not completely uniform. Narrow water features, wetland patches, and wooded pieces remain within the developed side, especially near the central-eastern portion. Their presence breaks up the red surface and shows where natural cover persists inside a heavily developed landscape.
The center of Kane County is the most mixed part of the map. Agricultural blocks remain visible, but they are increasingly interrupted by development and smaller natural patches. That makes the central area a practical transition zone between the farm-dominant west and the development-dominant east. Looking at this middle section helps explain why countywide percentages alone do not capture the full pattern.
The forest-and-farmland view makes the agricultural west and remaining natural corridors easier to see
The forest-and-farmland map removes much of the visual weight of developed land and makes the agricultural pattern easier to follow. Agriculture remains broad across the west and southwest, where large yellow blocks dominate the map. Moving eastward, those blocks become smaller or disappear into developed/other cover. Forest, wetlands, and water then stand out as smaller natural pieces inside the central and eastern parts of the county.
Forest accounts for 5.66% of the county, so it is not a dominant class. Even so, wooded strips and patches are visible through the center and eastern side, often close to wetland or water features. Some wooded pieces also appear within the western agricultural area, but they are smaller and more scattered. Their distribution is useful for seeing how natural cover survives in both rural and developed parts of Kane County.
Mean impervious cover reaches 15.21%, revealing how dense the eastern development really is
Impervious surface is the share of the ground covered by hard materials such as pavement, parking areas, and rooftops that do not readily absorb water. Kane County has a mean impervious value of 15.21%, and 12.44% of the county reaches 50% impervious or greater. These are high values compared with farm-dominant counties and match the broad developed pattern visible on the eastern side.
The western farm area is mostly white or very light on the impervious map, with thin lines following roads and small developed nodes. Colors become more varied through the middle of the county. Farther east, orange, red, and dark red cover much larger areas, particularly in the northeast, east-central, and southeast sections. The contrast makes the rural-urban split much sharper than on the general land-cover map.
Developed land and impervious cover are related but not identical. Developed land is 40.23%, while the mean impervious value is 15.21%. Developed land-cover classes can include lawns, trees, soil, and other permeable surfaces in addition to buildings and pavement. Impervious cover isolates the hard-surface fraction, so it is a better map for comparing the intensity of built surfaces.
The 1985–2025 map shows a 26.53% class difference, with 15.68% classified to developed
Kane County’s change map contains much more red than many other Illinois county examples. The overall 1985–2025 class-difference value is 26.53%. Of that total, 15.68% is classified to developed, 0.13% is forest loss, 1.47% is agricultural loss, and 9.13% is other class difference. The large “to developed” share is the most important numerical feature of the comparison.
Red developed differences are extensive across the east and also appear in large patches through the middle, north, and south. Smaller red areas reach into the agricultural west but do not cover it as continuously. Purple other-class differences are spread across much of the county, while agricultural-loss patches are smaller and forest-loss colors are limited. The map therefore shows several kinds of change rather than a single uniform conversion pattern.
A cell classified to developed in the comparison should not automatically be treated as proof of a specific construction project or parcel-level urbanization. Real surface change may be included, but imagery, seasonal conditions, classification methods, and mixed pixels can also affect the two-year comparison. The map itself notes that classification variation may be present, so important locations should be checked against other imagery or local records.
Using the four maps together separates present cover, development intensity, and historical class change
The general land-cover map is the best starting point for a countywide overview. It shows the broad agricultural west, the developed east, and the mixed central zone in one frame. The forest-and-farmland map is better when the question is how much agricultural land remains and where smaller natural-cover patches persist within the county.
The impervious map answers a narrower question about the density of hard surfaces. It helps explain why 40.23% developed cover does not mean that 40.23% of the county is pavement or rooftops. The change map serves a different purpose again, because it compares classification endpoints rather than showing current cover. Keeping these measures separate avoids mixing present-day development with historical change.
Raster resolution and observation year matter along roads, water corridors, and small natural patches
Annual NLCD products are commonly represented with roughly 30-meter raster cells. A raster divides the ground into a grid and assigns each cell a representative class or value. Where one cell contains several surfaces—such as cropland beside a road, development beside vegetation, or water beside wetland—the final map can simplify a complex boundary into one class.
This limitation matters in Kane County because the western road grid is narrow, the central transition zone contains small forest and wetland patches, and the eastern developed area includes water and green-space edges. The mapped shapes should not be treated as parcel surveys. Developed classes do not define zoning, and forest or wetland colors do not establish ownership, protection status, or legal boundaries.
Frequently Asked Questions
How different are agriculture and developed land in Kane County in 2025?
Agriculture is 49.99% and developed land is 40.23%. Agriculture is broadest in the west, while developed cover dominates much of the east, producing a strong internal contrast.
Does 40.23% developed land mean 40.23% of the county is impervious?
No. Mean impervious cover is 15.21%. Developed classes can include lawns, trees, soil, and other permeable surfaces, while impervious cover isolates hard surfaces such as pavement and rooftops.
Does the 26.53% 1985–2025 class difference equal physical urbanization?
Not exactly. The map shows 15.68% classified to developed, but imagery, classification methods, seasonal conditions, and mixed pixels can also affect the comparison. Specific locations should be checked with other evidence.
Map File Information
The download combines four original JPG maps for Kane County: 2025 land cover, forest and farmland, impervious/developed land, and the 1985–2025 land-cover class comparison.
- Included Versions: Land Cover Map, Forest & Farmland Map, Impervious/Developed Land Map, and 1985–2025 Land Cover Change Map
- File Type: One ZIP containing four JPG files
- Intended Use: western farmland/eastern development comparison, impervious-surface review, natural-cover reference, class-change analysis, teaching, and presentations
Related Maps
- Adams County Illinois Land Cover Map
- Alexander County Illinois Land Cover Map
- Bond County Illinois Land Cover Map
Sources and references
- MRLC Annual NLCD Data – official access point for Annual NLCD land-cover and impervious-surface products.
- USGS Annual NLCD Land Cover Classification – official documentation for land-cover classes and raster interpretation.
- U.S. Census Bureau TIGER/Line Shapefiles – official geographic boundary source for Kane County.
Green Map creates custom-edited map images using open geographic data sources such as geoBoundaries, Natural Earth, OpenStreetMap, and government open data.
These maps are edited visual materials, not raw data files, and are provided for education, documents, presentations, and graphic reference.
