NYS Counties with the most COVID-19 positive test results per 100K residents
FromToCountyNew Positives per
100K people
Actual
New Positives
% Tests
Positive
3/1/20203/7/2020Westchester44225.77%
3/8/20203/14/2020Westchester1414010.56%
3/15/20203/21/2020Westchester170169118.46%
3/22/20203/28/2020Westchester671664630.39%
3/29/20204/4/2020Rockland919311750.45%
4/5/20204/11/2020Rockland706239544.06%
4/12/20204/18/2020Bronx534738243.35%
4/19/20204/25/2020Rockland558189229.92%
4/26/20205/2/2020Bronx285394619.97%
5/3/20205/9/2020Sullivan17814217.44%
5/10/20205/16/2020Sullivan17313815.66%
5/17/20205/23/2020Sullivan99798.08%
5/24/20205/30/2020Sullivan96775.72%
5/31/20206/6/2020Orleans66263.12%
6/7/20206/13/2020Oneida561301.74%
6/14/20206/20/2020Oneida521202.14%
6/21/20206/27/2020Oneida841932.69%
6/28/20207/4/2020Oneida681562.75%
7/5/20207/11/2020Onondaga371751.8%
7/12/20207/18/2020Oneida511172.04%
7/19/20207/25/2020Broome48951.86%
7/26/20208/1/2020Ulster561032.18%
8/2/20208/8/2020Herkimer55331.59%
8/9/20208/15/2020Hamilton5833.61%
8/16/20208/22/2020Essex111414.78%
8/23/20208/29/2020Essex75282.62%
8/30/20209/5/2020Otsego2061255.03%
9/6/20209/12/2020Otsego75462.59%
9/13/20209/19/2020Chemung97792.32%
9/20/20209/26/2020Chemung1601313.53%
9/27/202010/3/2020Chemung3192606.47%
10/4/202010/10/2020Chemung2912375.03%
10/11/202010/17/2020Chemung3512865.83%
10/18/202010/24/2020Chemung4863966.36%
10/25/202010/31/2020Tioga2651274.92%
11/1/202011/7/2020Chemung3362745.3%
11/8/202011/14/2020Allegany3741756.64%
11/15/202011/21/2020Allegany4322023.49%
11/22/202011/28/2020Chemung4924015.99%
11/29/202012/5/2020Oneida61514097.65%
12/6/202012/12/2020Oneida68715749.14%
12/13/202012/19/2020Genesee76343910.51%
12/20/202012/26/2020Genesee71941411.87%
12/27/20201/2/2021Herkimer94156311.9%
1/3/20211/9/2021Herkimer105463113.28%
1/10/20211/16/2021Lewis88023513.78%
1/17/20211/23/2021Lewis72619411.65%
1/24/20211/30/2021Hamilton9374813.15%
1/31/20212/6/2021Hamilton722379.3%
2/7/20212/13/2021Bronx48066316.36%
2/14/20212/20/2021Bronx37551805.8%
2/21/20212/27/2021Bronx38753455.2%
2/28/20213/6/2021Richmond40219784.48%
3/7/20213/13/2021Richmond38118754.77%
3/14/20213/20/2021Richmond42420844.57%
3/21/20213/27/2021Richmond42420864.83%
3/28/20214/3/2021Richmond44621955.2%
4/4/20214/10/2021Richmond44321774.64%
4/11/20214/17/2021Erie35433715.46%
4/18/20214/24/2021Richmond26513063.04%
4/25/20215/1/2021Lewis213574.77%
5/2/20215/8/2021Lewis273736.87%
5/9/20215/15/2021Lewis288776.72%
5/16/20215/22/2021Lewis183494.54%
5/23/20215/29/2021Cortland106492.05%
5/30/20216/5/2021Lewis63172%
6/6/20216/12/2021Schuyler4581.5%
6/13/20216/19/2021Schuyler4582.08%
6/20/20216/26/2021Hamilton3921.27%
6/27/20217/3/2021Richmond492421.36%
7/4/20217/10/2021Richmond482361.42%
7/11/20217/17/2021Richmond723551.88%
7/18/20217/24/2021Richmond1055202.42%
7/25/20217/31/2021Richmond1577753.25%
8/1/20218/7/2021Richmond21610643.57%
8/8/20218/14/2021Richmond25512533.71%
8/15/20218/21/2021Cayuga3102376.53%
8/22/20218/28/2021Fulton3431818.28%
8/29/20219/4/2021Franklin3681716.93%
9/5/20219/11/2021Hamilton5082611.21%
9/12/20219/18/2021Franklin4612147.37%
9/19/20219/25/2021Chemung4883986.8%
9/26/202110/2/2021Fulton56229610.24%
10/3/202110/9/2021Chemung5834757.72%
10/10/202110/16/2021Chemung5854777.81%
10/17/202110/23/2021Fulton3872047.35%
10/24/202110/30/2021Allegany4942319.23%
10/31/202111/6/2021Allegany59327711.47%
11/7/202111/13/2021Washington72944411.02%
11/14/202111/20/2021Washington93056613.32%
11/21/202111/27/2021Washington64139012.33%
11/28/202112/4/2021Orleans82632513.4%
12/5/202112/11/2021Orleans67926711.14%
12/12/202112/18/2021Tompkins185519446.62%
12/19/202112/25/2021New_York25484070010.5%
12/26/20211/1/2022Richmond34181679122.84%
1/2/20221/8/2022Bronx38535317224.77%
1/9/20221/15/2022Queens26506036917.63%
1/16/20221/22/2022Clinton126799818.84%
1/23/20221/29/2022Clinton113689516.24%
1/30/20222/5/2022Clinton75559511.85%
2/6/20222/12/2022Clinton5614429.61%
2/13/20222/19/2022Clinton3642877.89%
2/20/20222/26/2022Clinton2031605.9%
2/27/20223/5/2022Franklin2411125.99%
3/6/20223/12/2022Franklin178834.46%
3/13/20223/19/2022Franklin2261056.25%
3/20/20223/26/2022Tompkins4564785.6%
3/27/20224/2/2022Oswego40447811.55%
4/3/20224/9/2022Oswego48757714.12%
4/10/20224/16/2022Oswego44953215.82%
4/17/20224/23/2022Oneida4339919.8%
4/24/20224/30/2022Erie467444519.04%
5/1/20225/7/2022Tompkins5125378.65%
5/8/20225/14/2022Nassau457632411.57%
5/15/20225/21/2022Warren45529912.42%
5/22/20225/28/2022New_York37559906.91%
5/29/20226/4/2022New_York29246646.09%
6/5/20226/11/2022New_York35256335.82%
6/12/20226/18/2022New_York28645715.71%
6/19/20226/25/2022New_York29747446.72%
6/26/20227/2/2022New_York32552048.43%
7/3/20227/9/2022New_York34855669.15%
7/10/20227/16/2022Queens402917611.28%
7/17/20227/23/2022Queens351799710.88%
7/24/20227/30/2022Queens305695610.16%
7/24/20227/30/2022Richmond305150010.17%
7/31/20228/6/2022Queens29667489.81%
8/7/20228/13/2022Richmond25512548.19%
8/14/20228/20/2022Fulton21611412.39%
8/21/20228/27/2022Chenango23811113.75%
8/28/20229/3/2022Tompkins18619511.25%
9/4/20229/10/2022Cortland1999212.37%
9/11/20229/17/2022Fulton26013712.43%
9/18/20229/24/2022Fulton31116413.23%
9/25/202210/1/2022Fulton25813612.26%
10/2/202210/8/2022Fulton30115915.87%
10/9/202210/15/2022Oswego21926013.01%
10/16/202210/22/2022Warren1901258.06%
10/23/202210/29/2022Nassau17624428.14%
10/30/202211/5/2022Hamilton2931526.79%
11/6/202211/12/2022Queens18542197.73%
11/13/202211/19/2022New_York18830116.54%
11/20/202211/26/2022Nassau17824748.81%
11/27/202212/3/2022Nassau29340669.91%
12/4/202212/10/2022Suffolk305465410.69%
12/11/202212/17/2022Nassau300416210.39%
12/18/202212/24/2022Nassau307425611.23%
12/25/202212/31/2022Suffolk249380112.05%
1/1/20231/7/2023Orange25410358.7%
1/8/20231/14/2023Orange1978007.62%
1/15/20231/21/2023Orange1716986.69%
1/22/20231/28/2023Sullivan1651328.36%
1/29/20232/4/2023Greene1899123.51%
2/5/20232/11/2023Clinton16212810.66%
2/12/20232/18/2023Cortland1717911.48%
2/19/20232/25/2023Cortland1758110.89%
2/26/20233/4/2023Clinton1391108.89%
3/5/20233/11/2023Franklin1406510.83%
3/12/20233/18/2023Seneca103347.51%
3/19/20233/25/2023Hamilton117613.33%
3/26/20234/1/2023Wayne73675.79%
4/2/20234/8/2023Wayne87806.68%
4/9/20234/15/2023Wayne58534.92%
4/16/20234/22/2023Rockland993380.59%
4/23/20234/29/2023Rockland842850.96%
4/30/20235/6/2023Otsego342126.92%
5/7/20235/13/2023New_York274392.29%
5/14/20235/20/2023Franklin36177.23%
5/21/20235/27/2023Franklin361710%
5/28/20236/3/2023Rockland23805.33%
5/28/20236/3/2023Westchester232336.04%
6/4/20236/10/2023Sullivan21178.59%
6/11/20236/17/2023Jefferson21255.25%
6/18/20236/24/2023Steuben262515.06%
6/25/20237/1/2023Genesee241416.47%
7/2/20237/8/2023Chenango25126.28%
7/2/20237/8/2023Tioga251254.55%
7/9/20237/15/2023New_York264168.43%
7/16/20237/22/2023Sullivan282314.02%
7/23/20237/29/2023Warren442927.36%
7/30/20238/5/2023Nassau5171415.95%
8/6/20238/12/2023Delaware492261.11%
8/13/20238/19/2023Delaware582642.62%
8/20/20238/26/2023Delaware934248.84%
8/27/20239/2/2023Broome11422662.26%
9/3/20239/9/2023Suffolk1412161100%
9/10/20239/16/2023Nassau1562163100%
9/17/20239/23/2023Montgomery17989100%
9/24/20239/30/2023Montgomery219109100%
10/1/202310/7/2023Washington16299100%
10/8/202310/14/2023Washington12878100%
10/15/202310/21/2023Genesee13377100%
10/22/202310/28/2023Hamilton1367100%
10/29/202311/4/2023Cortland10649100%
11/5/202311/11/2023Chemung12199100%
11/12/202311/18/2023Chemung11796100%
11/19/202311/25/2023Steuben131122100%
11/26/202312/2/2023Washington193118100%
12/3/202312/9/2023Sullivan193154100%
12/10/202312/16/2023Clinton290229100%
12/17/202312/23/2023Schuyler29452100%
12/24/202312/30/2023Suffolk3445256100%
12/31/20231/6/2024Nassau3444767100%
1/7/20241/13/2024Lewis374100100%
1/14/20241/20/2024Sullivan223178100%
1/21/20241/27/2024Sullivan210168100%
1/28/20242/3/2024Suffolk1612458100%
2/4/20242/10/2024Sullivan178142100%
2/11/20242/17/2024Seneca14548100%
2/18/20242/24/2024Sullivan126101100%
2/25/20243/2/2024Sullivan11894100%
3/3/20243/9/2024Sullivan7056100%
3/10/20243/16/2024Sullivan7459100%
3/17/20243/23/2024Sullivan5040100%
3/24/20243/30/2024Jefferson5362100%
3/31/20244/6/2024Chemung5243100%
4/7/20244/13/2024Franklin4019100%
4/14/20244/20/2024Jefferson3845100%
4/21/20244/27/2024Sullivan3629100%
4/28/20245/4/2024Ulster3259100%
5/5/20245/11/2024Ulster3260100%
Week with most COVID-19 positive test results, by county
CountyFromToNew Positives per
100K people
Actual
New Positives
% Tests
Positive
Albany1/2/20221/8/20221489470419.76%
Allegany1/9/20221/15/202276235613.84%
Bronx1/2/20221/8/202238535317224.77%
Broome1/2/20221/8/20221485292918.64%
Cattaraugus1/16/20221/22/2022113086416.88%
Cayuga1/2/20221/8/20221546118217.19%
Chautauqua1/2/20221/8/20221030129920.04%
Chemung1/9/20221/15/20222109171818.07%
Chenango1/2/20221/8/2022122957115.22%
Clinton1/9/20221/15/20221881148221.49%
Columbia1/9/20221/15/2022127578220.47%
Cortland1/2/20221/8/2022155271616.33%
Delaware1/2/20221/8/2022129457921.64%
Dutchess1/2/20221/8/20222013599122.88%
Erie1/2/20221/8/202219191824123.27%
Essex1/2/20221/8/2022109740512.46%
Franklin1/2/20221/8/2022118154814.57%
Fulton1/9/20221/15/2022140574020.33%
Genesee1/9/20221/15/2022166695922.08%
Greene1/9/20221/15/2022130662818.66%
Hamilton1/2/20221/8/202214267313.59%
Herkimer1/2/20221/8/2022139283317.58%
Jefferson1/9/20221/15/20221304152120.75%
Kings1/2/20221/8/202230857993319.76%
Lewis1/9/20221/15/2022128834418.74%
Livingston1/9/20221/15/2022127778619.82%
Madison1/2/20221/8/2022119980515.83%
Monroe1/2/20221/8/202215161140420.61%
Montgomery1/2/20221/8/2022176187421.85%
Nassau1/2/20221/8/202230254185925.29%
New_York1/2/20221/8/202230084803216.58%
Niagara1/2/20221/8/20221873395122.01%
Oneida1/2/20221/8/20221514346516.92%
Onondaga1/2/20221/8/202223371094524.09%
Ontario1/2/20221/8/20221172132119.03%
Orange1/2/20221/8/202225711043727.2%
Orleans1/9/20221/15/2022153360322.45%
Oswego1/2/20221/8/20221478174923.6%
Otsego1/2/20221/8/2022128177715.33%
Putnam12/26/20211/1/20222525247618.86%
Queens1/2/20221/8/202237038436223.89%
Rensselaer1/2/20221/8/20221639262118.93%
Richmond1/2/20221/8/202236541794622.93%
Rockland1/2/20221/8/20222770939120.16%
Saratoga1/2/20221/8/20221741415921.15%
Schenectady1/2/20221/8/20221737278118.93%
Schoharie1/9/20221/15/2022117735418.38%
Schuyler1/9/20221/15/2022146125815.31%
Seneca1/9/20221/15/2022137445219.66%
St_Lawrence1/9/20221/15/20221004108213.45%
Steuben1/9/20221/15/20221251115912.99%
Suffolk1/2/20221/8/202226554050326.67%
Sullivan1/2/20221/8/20222522200924.97%
Tioga1/9/20221/15/2022142368017.99%
Tompkins12/12/202112/18/2021185519446.62%
Ulster1/2/20221/8/20221299237019.2%
Warren1/2/20221/8/20221809118718.2%
Washington1/9/20221/15/2022146989416.34%
Wayne1/9/20221/15/20221214110717.92%
Westchester1/2/20221/8/202225622537922.78%
Wyoming1/2/20221/8/2022135154023.19%
Yates1/9/20221/15/202295723415.31%

Data based on New York State Department of Health data. Note that early in the pandemic (and often later), large numbers of cases happened but were not detected. Since 8/30/2023, data no longer reports total number of tests. Population estimates from 2022 census estimates.

Last updated 5/14/2024.