Missing Millions · 2026 estimate

Pennsylvania is missing 574,700 lung cancer screenings.

About 1 in 8 adults ages 50 to 80 in Pennsylvania qualifies for lung cancer screening and hasn't been screened. Find your county below.

716,500adults qualify for screening under USPSTF 2021 criteria (estimate)
19.8%were screened, 17th of 51 (American Lung Association, 2025); 18.2% nationally
18,928low-dose CT screening scans billed to Medicare fee-for-service by Pennsylvania providers in 2024

Sources: U.S. Census Bureau Population Estimates 2025; CDC PLACES 2025; USPSTF 2021; American Lung Association, State of Lung Cancer 2025; CMS Medicare Physician and Other Practitioners 2024 (CPT 71271). Modeled estimates; see methodology below.

The gap, county by county

Shade shows how many adults ages 50 to 80 are missing screening. Select a county.

Philadelphia County

64,700

missing lung cancer screenings (estimate)

  • Qualify for screening80,700
  • Adults 50 to 80 missing screening1 in 7
  • Medicare low-dose CT scans, 20242,930
Open the Philadelphia County page

Every Pennsylvania county, ranked

Ranked by estimated missing screenings. Select a column to sort.
1Philadelphia County64,70080,7001 in 72,930
2Allegheny County49,10061,3001 in 93,365
3Bucks County30,90038,6001 in 8452
4Montgomery County30,50038,0001 in 10633
5Lancaster County22,50028,1001 in 8805
6York County20,90026,1001 in 81,173
7Delaware County19,20023,9001 in 10648
8Berks County17,80022,2001 in 9453
9Luzerne County16,70020,8001 in 7154
10Lehigh County16,40020,4001 in 8992
11Chester County16,20020,2001 in 12492
12Westmoreland County15,40019,2001 in 9290
13Northampton County13,60016,9001 in 9896
14Dauphin County13,50016,8001 in 7754
15Erie County13,40016,7001 in 7431
16Washington County10,90013,6001 in 8108
17Cumberland County10,40012,9001 in 9199
18Lackawanna County10,20012,7001 in 8522
19Schuylkill County8,70010,9001 in 60
20Franklin County8,40010,5001 in 735
21Monroe County8,30010,3001 in 8196
22Fayette County8,20010,2001 in 60
23Beaver County8,00010,0001 in 8234
24Cambria County7,4009,3001 in 7172
25Butler County7,4009,2001 in 1015
26Blair County6,9008,6001 in 7170
27Lebanon County6,3007,8001 in 828
28Mercer County5,6007,0001 in 8123
29Centre County5,5006,8001 in 881
30Lycoming County5,4006,7001 in 8253
31Adams County5,3006,6001 in 8179
32Northumberland County5,2006,5001 in 70
33Clearfield County5,0006,2001 in 669
34Crawford County4,9006,1001 in 6106
35Lawrence County4,6005,7001 in 70
36Somerset County4,3005,4001 in 70
37Armstrong County4,1005,2001 in 616
38Carbon County3,8004,7001 in 70
39Indiana County3,6004,5001 in 838
40Wayne County3,4004,2001 in 70
41Pike County3,2004,0001 in 90
42Columbia County3,0003,8001 in 8215
43Venango County3,0003,7001 in 738
44Bradford County2,9003,6001 in 8349
45Bedford County2,8003,6001 in 70
46Mifflin County2,8003,5001 in 659
47Jefferson County2,7003,4001 in 642
48Perry County2,5003,2001 in 70
49Huntingdon County2,5003,1001 in 70
50Tioga County2,3002,9001 in 70
51Warren County2,3002,8001 in 70
52Greene County2,0002,5001 in 70
53Clarion County2,0002,4001 in 751
54Clinton County1,9002,4001 in 70
55Union County1,9002,4001 in 70
56McKean County1,9002,4001 in 80
57Elk County1,8002,3001 in 70
58Susquehanna County1,8002,2001 in 90
59Snyder County1,7002,1001 in 80
60Wyoming County1,6001,9001 in 70
61Juniata County1,3001,6001 in 70
62Potter County1,0001,3001 in 70
63Montour County8801,1001 in 81,162
64Fulton County7809701 in 70
65Sullivan County4806001 in 60
66Forest County4605801 in 60
67Cameron County3204001 in 60

Methodology

How we estimate the gap

A modeled estimate from public data only. It is not a count of patients and contains no patient information.

missing = adults 50 to 80 × county smoking rate × national eligibility factor × (1 − state screening rate)

  • Adults 50 to 80: U.S. Census Bureau, Population Estimates, Vintage 2025
  • Smoking: CDC PLACES 2025 release (Kentucky and Pennsylvania: 2024 release)
  • Eligibility: USPSTF 2021 criteria, scaled to about 14.5 million eligible adults nationally
  • Screening rates: American Lung Association, State of Lung Cancer 2025
  • Who is missing: Census population estimates (age) and American Community Survey 2020 to 2024 (language)
  • Screening activity: CMS Medicare fee-for-service claims for low-dose CT (CPT 71271), 2024, by provider location

Estimates under 50 are shown as "fewer than 50"; others are rounded. Full methodology

Many of them are already your patients.

Oatmeal Health helps health systems and community health centers find, navigate, and screen the people who qualify, alongside the care teams you already have.

Find my missing patients Explore your screening network