Cook County Trends
The properties below represent a few of the many tax reductions from the our appeals and the grounds on which they were based.
All Townships
38 Locations
Northfield
North/Northwest
NORTH
Rising
Median market value
$756,665
of res. property
Change in Assessments
+28.1%
since the last reassessment
Properties Appealed
2025
15,648
2024
7,560
2023
5,083
0
5,000
10,000
15,000
20,000
Norwood Park
North/Northwest
NORTH
Rising
Median market value
$377,405
of res. property
Change in Assessments
+12.6%
since the last reassessment
Properties Appealed
2025
3,313
2024
2,079
2023
765
0
1,000
2,000
3,000
4,000
Oak Park
South/West
SOUTH
Rising
Median market value
$560,000
of res. property
Change in Assessments
+22.8%
since the last reassessment
Properties Appealed
2025
3,696
2024
4,245
2023
5,245
0
1,500
3,000
4,500
6,000
Orland
South/West
SOUTH
Rising
Median market value
$350,000
of res. property
Change in Assessments
+35.6%
since the last reassessment
Properties Appealed
2025
6,745
2024
8,743
2023
9,387
0
2,500
5,000
7,500
10,000
Palatine
North/Northwest
NORTH
Rising
Median market value
$420,000
of res. property
Change in Assessments
+27.9%
since the last reassessment
Properties Appealed
2025
14,028
2024
6,775
2023
4,052
0
5,000
10,000
15,000
20,000
Palos
South/West
SOUTH
Rising
Median market value
$400,000
of res. property
Change in Assessments
+35.7%
since the last reassessment
Properties Appealed
2025
3,261
2024
3,938
2023
4,899
0
1,250
2,500
3,750
5,000
Proviso
South/West
SOUTH
Rising
Median market value
$232,360
of res. property
Change in Assessments
+27.7%
since the last reassessment
Properties Appealed
2025
5,990
2024
6,931
2023
6,658
0
1,750
3,500
5,250
7,000
Rich
South/West
SOUTH
Rising
Median market value
$200,000
of res. property
Change in Assessments
+54.6%
since the last reassessment
Properties Appealed
2025
4,210
2024
4,857
2023
3,968
0
1,250
2,500
3,750
5,000
River Forest
South/West
SOUTH
Rising
Median market value
$920,000
of res. property
Change in Assessments
+26.5%
since the last reassessment
Properties Appealed
2025
1,181
2024
1,294
2023
1,637
0
500
1,000
1,500
2,000
Riverside
South/West
SOUTH
Rising
Median market value
$420,000
of res. property
Change in Assessments
+26.6%
since the last reassessment
Properties Appealed
2025
1,237
2024
1,496
2023
1,790
0
500
1,000
1,500
2,000
Detailed Statistics
Key Numbers ?
23,866
Homes & Townhomes
95.6%
Homes with increased assessments
55yrs
Median home age
Size Metrics ?
2,577sqft.
Median building size
10,880sqft.
Median land size
Residential Property Types ?
2+ story homes 55.2%
1-story homes 26.2%
Townhomes / row houses 11.1%
Split-level homes 7.6%
% of Residential Properties Feature ?
Central AC
85.6%
Fireplaces
78.1%
Garage
96.5%
Full basement
51%
Key Numbers ?
NORTHFIELD
COOK COUNTY
Median market value
$756,665
$290,000
Change in Assessments
28.1%
25.8%
Homes & Townhomes
23,866
950,468
Homes with increased assessments
95.6%
92%
Median home age
55 yrs
69 yrs
Size Metrics ?
NORTHFIELD
COOK COUNTY
Median building size
2,577 sqft
1,374 sqft
Median land size
10,880 sqft
5,940 sqft
Residential Property Types ?
NORTHFIELD
COOK COUNTY
2+ story homes
55.2%
27.2%
1-story homes
26.2%
54.7%
Townhomes / row houses
11.1%
7.7%
Split-level homes
7.6%
10.4%
% of Residential Properties Feature ?
NORTHFIELD
COOK COUNTY
Central AC
85.6%
56.4%
Fireplaces
78.1%
32%
Garage
96.5%
88%
Full basement
51%
58.1%
Detailed Statistics
Key Numbers ?
7,972
Homes & Townhomes
90.9%
Homes with increased assessments
70yrs
Median home age
Size Metrics ?
1,291sqft.
Median building size
5,360sqft.
Median land size
Residential Property Types ?
2+ story homes 22%
1-story homes 70.5%
Townhomes / row houses 1.6%
Split-level homes 5.9%
% of Residential Properties Feature ?
Central AC
61.7%
Fireplaces
21.8%
Garage
93.4%
Full basement
75.9%
Key Numbers ?
NORWOOD PARK
COOK COUNTY
Median market value
$377,405
$290,000
Change in Assessments
12.6%
25.8%
Homes & Townhomes
7,972
950,468
Homes with increased assessments
90.9%
92%
Median home age
70 yrs
69 yrs
Size Metrics ?
NORWOOD PARK
COOK COUNTY
Median building size
1,291 sqft
1,374 sqft
Median land size
5,360 sqft
5,940 sqft
Residential Property Types ?
NORWOOD PARK
COOK COUNTY
2+ story homes
22%
27.2%
1-story homes
70.5%
54.7%
Townhomes / row houses
1.6%
7.7%
Split-level homes
5.9%
10.4%
% of Residential Properties Feature ?
NORWOOD PARK
COOK COUNTY
Central AC
61.7%
56.4%
Fireplaces
21.8%
32%
Garage
93.4%
88%
Full basement
75.9%
58.1%
Detailed Statistics
Key Numbers ?
10,361
Homes & Townhomes
96%
Homes with increased assessments
109yrs
Median home age
Size Metrics ?
1,810sqft.
Median building size
5,040sqft.
Median land size
Residential Property Types ?
2+ story homes 62.4%
1-story homes 31%
Townhomes / row houses 6.4%
Split-level homes 0.2%
% of Residential Properties Feature ?
Central AC
56%
Fireplaces
38.8%
Garage
92.2%
Full basement
87.9%
Key Numbers ?
OAK PARK
COOK COUNTY
Median market value
$560,000
$290,000
Change in Assessments
22.8%
25.8%
Homes & Townhomes
10,361
950,468
Homes with increased assessments
96%
92%
Median home age
109 yrs
69 yrs
Size Metrics ?
OAK PARK
COOK COUNTY
Median building size
1,810 sqft
1,374 sqft
Median land size
5,040 sqft
5,940 sqft
Residential Property Types ?
OAK PARK
COOK COUNTY
2+ story homes
62.4%
27.2%
1-story homes
31%
54.7%
Townhomes / row houses
6.4%
7.7%
Split-level homes
0.2%
10.4%
% of Residential Properties Feature ?
OAK PARK
COOK COUNTY
Central AC
56%
56.4%
Fireplaces
38.8%
32%
Garage
92.2%
88%
Full basement
87.9%
58.1%
Detailed Statistics
Key Numbers ?
28,325
Homes & Townhomes
99.2%
Homes with increased assessments
38yrs
Median home age
Size Metrics ?
1,900sqft.
Median building size
10,000sqft.
Median land size
Residential Property Types ?
2+ story homes 33.9%
1-story homes 27.8%
Townhomes / row houses 16.2%
Split-level homes 22.2%
% of Residential Properties Feature ?
Central AC
81.6%
Fireplaces
71.8%
Garage
98.2%
Full basement
39.2%
Key Numbers ?
ORLAND
COOK COUNTY
Median market value
$350,000
$290,000
Change in Assessments
35.6%
25.8%
Homes & Townhomes
28,325
950,468
Homes with increased assessments
99.2%
92%
Median home age
38 yrs
69 yrs
Size Metrics ?
ORLAND
COOK COUNTY
Median building size
1,900 sqft
1,374 sqft
Median land size
10,000 sqft
5,940 sqft
Residential Property Types ?
ORLAND
COOK COUNTY
2+ story homes
33.9%
27.2%
1-story homes
27.8%
54.7%
Townhomes / row houses
16.2%
7.7%
Split-level homes
22.2%
10.4%
% of Residential Properties Feature ?
ORLAND
COOK COUNTY
Central AC
81.6%
56.4%
Fireplaces
71.8%
32%
Garage
98.2%
88%
Full basement
39.2%
58.1%
Detailed Statistics
Key Numbers ?
27,140
Homes & Townhomes
99.5%
Homes with increased assessments
53yrs
Median home age
Size Metrics ?
1,856sqft.
Median building size
9,880sqft.
Median land size
Residential Property Types ?
2+ story homes 41.3%
1-story homes 34.7%
Townhomes / row houses 14.7%
Split-level homes 9.2%
% of Residential Properties Feature ?
Central AC
81.2%
Fireplaces
60%
Garage
98.2%
Full basement
40.6%
Key Numbers ?
PALATINE
COOK COUNTY
Median market value
$420,000
$290,000
Change in Assessments
27.9%
25.8%
Homes & Townhomes
27,140
950,468
Homes with increased assessments
99.5%
92%
Median home age
53 yrs
69 yrs
Size Metrics ?
PALATINE
COOK COUNTY
Median building size
1,856 sqft
1,374 sqft
Median land size
9,880 sqft
5,940 sqft
Residential Property Types ?
PALATINE
COOK COUNTY
2+ story homes
41.3%
27.2%
1-story homes
34.7%
54.7%
Townhomes / row houses
14.7%
7.7%
Split-level homes
9.2%
10.4%
% of Residential Properties Feature ?
PALATINE
COOK COUNTY
Central AC
81.2%
56.4%
Fireplaces
60%
32%
Garage
98.2%
88%
Full basement
40.6%
58.1%
Detailed Statistics
Key Numbers ?
13,769
Homes & Townhomes
98.9%
Homes with increased assessments
54yrs
Median home age
Size Metrics ?
1,760sqft.
Median building size
10,258sqft.
Median land size
Residential Property Types ?
2+ story homes 28.2%
1-story homes 39.2%
Townhomes / row houses 10.8%
Split-level homes 21.8%
% of Residential Properties Feature ?
Central AC
78.1%
Fireplaces
56.8%
Garage
94.1%
Full basement
35.3%
Key Numbers ?
PALOS
COOK COUNTY
Median market value
$400,000
$290,000
Change in Assessments
35.7%
25.8%
Homes & Townhomes
13,769
950,468
Homes with increased assessments
98.9%
92%
Median home age
54 yrs
69 yrs
Size Metrics ?
PALOS
COOK COUNTY
Median building size
1,760 sqft
1,374 sqft
Median land size
10,258 sqft
5,940 sqft
Residential Property Types ?
PALOS
COOK COUNTY
2+ story homes
28.2%
27.2%
1-story homes
39.2%
54.7%
Townhomes / row houses
10.8%
7.7%
Split-level homes
21.8%
10.4%
% of Residential Properties Feature ?
PALOS
COOK COUNTY
Central AC
78.1%
56.4%
Fireplaces
56.8%
32%
Garage
94.1%
88%
Full basement
35.3%
58.1%
Detailed Statistics
Key Numbers ?
38,687
Homes & Townhomes
97.3%
Homes with increased assessments
73yrs
Median home age
Size Metrics ?
1,218sqft.
Median building size
6,120sqft.
Median land size
Residential Property Types ?
2+ story homes 21.5%
1-story homes 67.8%
Townhomes / row houses 4.5%
Split-level homes 6.3%
% of Residential Properties Feature ?
Central AC
51.1%
Fireplaces
17.4%
Garage
91.7%
Full basement
70.3%
Key Numbers ?
PROVISO
COOK COUNTY
Median market value
$232,360
$290,000
Change in Assessments
27.7%
25.8%
Homes & Townhomes
38,687
950,468
Homes with increased assessments
97.3%
92%
Median home age
73 yrs
69 yrs
Size Metrics ?
PROVISO
COOK COUNTY
Median building size
1,218 sqft
1,374 sqft
Median land size
6,120 sqft
5,940 sqft
Residential Property Types ?
PROVISO
COOK COUNTY
2+ story homes
21.5%
27.2%
1-story homes
67.8%
54.7%
Townhomes / row houses
4.5%
7.7%
Split-level homes
6.3%
10.4%
% of Residential Properties Feature ?
PROVISO
COOK COUNTY
Central AC
51.1%
56.4%
Fireplaces
17.4%
32%
Garage
91.7%
88%
Full basement
70.3%
58.1%
Detailed Statistics
Key Numbers ?
22,391
Homes & Townhomes
99.3%
Homes with increased assessments
53yrs
Median home age
Size Metrics ?
1,550sqft.
Median building size
8,753sqft.
Median land size
Residential Property Types ?
2+ story homes 31.8%
1-story homes 37%
Townhomes / row houses 10.5%
Split-level homes 20.7%
% of Residential Properties Feature ?
Central AC
73.2%
Fireplaces
51.4%
Garage
93.5%
Full basement
35.1%
Key Numbers ?
RICH
COOK COUNTY
Median market value
$200,000
$290,000
Change in Assessments
54.6%
25.8%
Homes & Townhomes
22,391
950,468
Homes with increased assessments
99.3%
92%
Median home age
53 yrs
69 yrs
Size Metrics ?
RICH
COOK COUNTY
Median building size
1,550 sqft
1,374 sqft
Median land size
8,753 sqft
5,940 sqft
Residential Property Types ?
RICH
COOK COUNTY
2+ story homes
31.8%
27.2%
1-story homes
37%
54.7%
Townhomes / row houses
10.5%
7.7%
Split-level homes
20.7%
10.4%
% of Residential Properties Feature ?
RICH
COOK COUNTY
Central AC
73.2%
56.4%
Fireplaces
51.4%
32%
Garage
93.5%
88%
Full basement
35.1%
58.1%
Detailed Statistics
Key Numbers ?
2,897
Homes & Townhomes
97.1%
Homes with increased assessments
98yrs
Median home age
Size Metrics ?
2,519sqft.
Median building size
9,400sqft.
Median land size
Residential Property Types ?
2+ story homes 69.6%
1-story homes 21.4%
Townhomes / row houses 8%
Split-level homes 1%
% of Residential Properties Feature ?
Central AC
71.2%
Fireplaces
76.2%
Garage
90.5%
Full basement
78%
Key Numbers ?
RIVER FOREST
COOK COUNTY
Median market value
$920,000
$290,000
Change in Assessments
26.5%
25.8%
Homes & Townhomes
2,897
950,468
Homes with increased assessments
97.1%
92%
Median home age
98 yrs
69 yrs
Size Metrics ?
RIVER FOREST
COOK COUNTY
Median building size
2,519 sqft
1,374 sqft
Median land size
9,400 sqft
5,940 sqft
Residential Property Types ?
RIVER FOREST
COOK COUNTY
2+ story homes
69.6%
27.2%
1-story homes
21.4%
54.7%
Townhomes / row houses
8%
7.7%
Split-level homes
1%
10.4%
% of Residential Properties Feature ?
RIVER FOREST
COOK COUNTY
Central AC
71.2%
56.4%
Fireplaces
76.2%
32%
Garage
90.5%
88%
Full basement
78%
58.1%
Detailed Statistics
Key Numbers ?
5,049
Homes & Townhomes
96.9%
Homes with increased assessments
79yrs
Median home age
Size Metrics ?
1,556sqft.
Median building size
7,100sqft.
Median land size
Residential Property Types ?
2+ story homes 40.3%
1-story homes 53.2%
Townhomes / row houses 3.4%
Split-level homes 3.1%
% of Residential Properties Feature ?
Central AC
72.7%
Fireplaces
48.6%
Garage
95.3%
Full basement
76.3%
Key Numbers ?
RIVERSIDE
COOK COUNTY
Median market value
$420,000
$290,000
Change in Assessments
26.6%
25.8%
Homes & Townhomes
5,049
950,468
Homes with increased assessments
96.9%
92%
Median home age
79 yrs
69 yrs
Size Metrics ?
RIVERSIDE
COOK COUNTY
Median building size
1,556 sqft
1,374 sqft
Median land size
7,100 sqft
5,940 sqft
Residential Property Types ?
RIVERSIDE
COOK COUNTY
2+ story homes
40.3%
27.2%
1-story homes
53.2%
54.7%
Townhomes / row houses
3.4%
7.7%
Split-level homes
3.1%
10.4%
% of Residential Properties Feature ?
RIVERSIDE
COOK COUNTY
Central AC
72.7%
56.4%
Fireplaces
48.6%
32%
Garage
95.3%
88%
Full basement
76.3%
58.1%