Montgomery County COVID-19 Case Counts

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The information in the case count tables is based on the Maryland Department of Health data released on 1/22/2021.

  • Counts may be different from those reported by Maryland, due to sources of reporting.
  • Cases with unknown sex/age are excluded.
  • Rates are per 100,000 population.
  • Case Fatality Rate = (Number of Deaths/Number of Cases)*100

We update the case count tables on Tuesdays and Fridays. For a daily updates on cases and deaths, see the State of Maryland COVID-19 Data Dashboard.

Confirmed Cases

  • The counts may be different than those reported by MDH due to sources of reporting.
  • Cases with unknown sex/age are excluded (n=3).
Age Group Male Female Total
Count Rate per 100K population Count Rate per 100K population Count Rate
0-9 years 1,702 2,469.5 1,468 2,224.1 3,170 2,349.9
10-19 years 2,646 3,939.4 2,839 4,439.8 5,485 4,183.4
20-29 years 4,619 7,437.2 5,111 8,316.1 9,730 7,874.3
30-39 years 4,608 6,535.3 4,997 6,726.4 9,605 6,633.4
40-49 years 4,379 6,390.8 4,721 6,305.4 9,100 6,346.2
50-59 years 3,989 5,669.2 4,199 5,442.2 8,188 5,550.5
60-69 years 2,648 4,986.9 2,602 4,325.1 5,250 4,635.4
70-79 years 1,239 4,661.2 1,441 4,041.8 2,680 4,306.4
80+ years 1,012 6,692.2 1,784 7,361.9 2,796 7,104.6
Total years 26,842 5,342.9 29,162 5,423.0 56,004 5,384.3

Confirmed Cases by Age and Month

  • Cases with unknown sex/age are excluded (n=3).
  • Row percent is displayed, representing the percentage of total cases per month falling within each age group.
  • The sum of monthly cases may not add up to total due to invalid year/month combination.
Age group 0-9 years 10-19 years 20-29 years 30-39 years 40-49 years 50-59 years 60-69 years 70-79 years 80+years Total
March Case Count 1 24 112 139 135 146 116 57 31 761
March Case % 0.1 3.2 14.7 18.3 17.7 19.2 15.2 7.5 4.1 100
April Case Count 84 156 539 815 877 820 562 369 574 4,796
April Case % 1.8 3.3 11.2 17.0 18.3 17.1 11.7 7.7 12.0 100
May Case Count 280 409 980 1,271 1,237 1,019 689 398 616 6,899
May Case % 4.1 5.9 14.2 18.4 17.9 14.8 10.0 5.8 8.9 100
June Case Count 158 266 495 580 484 414 244 100 111 2,852
June Case % 5.5 9.3 17.4 20.3 17.0 14.5 8.6 3.5 3.9 100
July Case Count 130 315 624 522 419 378 200 93 68 2,749
July Case % 4.7 11.5 22.7 19.0 15.2 13.8 7.3 3.4 2.5 100
August Case Count 143 317 502 416 339 247 187 92 81 2,324
August Case % 6.2 13.6 21.6 17.9 14.6 10.6 8.0 4.0 3.5 100
September Case Count 134 452 625 406 327 315 182 79 57 2,577
September Case % 5.2 17.5 24.3 15.8 12.7 12.2 7.1 3.1 2.2 100
October Case Count 220 400 705 645 602 528 290 140 111 3,641
October Case % 6.0 11.0 19.4 17.7 16.5 14.5 8.0 3.8 3.0 100
November Case Count 602 876 1,671 1,454 1,410 1,333 738 395 329 8,808
November Case % 6.8 9.9 19.0 16.5 16.0 15.1 8.4 4.5 3.7 100
December Case Count 886 1,365 2,179 2,112 2,010 1,827 1,214 567 533 12,693
December Case % 7.0 10.8 17.2 16.6 15.8 14.4 9.6 4.5 4.2 100
January Case Count 532 905 1,298 1,244 1,260 1,161 828 390 285 7,903
January Case % 6.7 11.5 16.4 15.7 15.9 14.7 10.5 4.9 3.6 100
Total Case Count 3,170 5,485 9,730 9,605 9,100 8,188 5,250 2,680 2,796 56,004
Total Case % 5.7 9.8 17.4 17.2 16.2 14.6 9.4 4.8 5.0 100

Cases by Race/Ethnicity and Month

  • Row percent is displayed, representing the percentage of total cases per month falling within each race/ethnicity group.
  • The sum of monthly cases may not add up to total due to invalid year/month combination.
Race/Ethnicity Non-Hispanic White Non-Hispanic Black Non-Hispanic Asian Hispanic Other Unknown TOTALS
March Case Count 241 194 43 122 64 97 761
March Case % 31.7 25.5 5.7 16.0 8.4 12.7 100
April Case Count 950 1,071 218 1,685 280 592 4,796
April Case % 19.8 22.3 4.5 35.1 5.8 12.3 100
May Case Count 1,079 875 252 3,029 515 1,149 6,899
May Case % 15.6 12.7 3.7 43.9 7.5 16.7 100
June Case Count 446 277 91 1,241 162 635 2,852
June Case % 15.6 9.7 3.2 43.5 5.7 22.3 100
July Case Count 575 541 84 823 164 562 2,749
July Case % 20.9 19.7 3.1 29.9 6.0 20.4 100
August Case Count 362 403 72 619 100 769 2,325
August Case % 15.6 17.3 3.1 26.6 4.3 33.1 100
September Case Count 454 326 52 533 130 1,083 2,578
September Case % 17.6 12.6 2.0 20.7 5.0 42.0 100
October Case Count 588 401 118 1,200 262 1,072 3,641
October Case % 16.1 11.0 3.2 33.0 7.2 29.4 100
November Case Count 1,449 1,044 318 2,462 651 2,884 8,808
November Case % 16.5 11.9 3.6 28.0 7.4 32.7 100
December Case Count 2,538 1,844 463 3,247 1,233 3,369 12,694
December Case % 20.0 14.5 3.6 25.6 9.7 26.5 100
January Case Count 1,632 1,110 235 2,006 702 2,218 7,903
January Case % 20.7 14.0 3.0 25.4 8.9 28.1 100
Total Case Count 10,315 8,086 1,946 16,967 4,263 14,430 56,007
Total Case % 18.4 14.4 3.5 30.3 7.6 25.8 100

Cases by ZIP Code

ZIP codes with less than 15 cumulative cases have been redacted from this report.

Open "Cases by ZIP Code" in a new window - view more easily on mobile devices!

Deaths by Age and Gender

***Rates are suppressed if frequency is less than 10, due to statistical instability.

Age Group Male Female Total
Count Rate per 100K population Count Rate per 100K population Count Rate per 100K population
0-9 years 0 0.0 0 0.0 0 0
10-19 years 0 0.0 0 0.0 0 0
20-29 years 0 0.0 0 0.0 0 0
30-39 years 14 19.9 4 N/A*** 18 12.4
40-49 years 27 39.4 15 20.0 42 29.3
50-59 years 61 86.7 17 22.0 78 52.9
60-69 years 121 227.9 46 76.5 167 147.4
70-79 years 136 511.6 113 316.1 249 400.1
80+ years 318 2,102.9 348 1,436.1 666 1,692.3
Total years 677 134.8 543 100.1 1,220 117.3

Deaths by Race/Ethnicity and Month

Row percent is displayed, representing the percentage of total deaths per month falling within each race/ethniciy group.

Race/Ethnicity Non-Hispanic White Non-Hispanic Black Non-Hispanic Asian Hispanic Other Unknown TOTALS
March death Count 0 1 3 1 0 0 5
March death % 0.0 20.0 60.0 20.0 0.0 0 100
April death Count 137 80 20 34 10 0 281
April death % 48.8 28.5 7.1 12.1 3.6 0 100
May death Count 150 64 31 62 10 0 317
May death % 47.3 20.2 9.8 19.6 3.2 0 100
June death Count 44 16 12 37 1 0 110
June death % 40.0 14.5 10.9 33.6 0.9 0 100
July death Count 16 7 3 20 1 0 47
July death % 34.0 14.9 6.4 42.6 2.1 0 100
August death Count 15 4 0 9 0 0 28
August death % 53.6 14.3 0.0 32.1 0.0 0 100
September death Count 12 4 2 6 1 0 25
September death % 48.0 16.0 8.0 24.0 4.0 0 100
October death Count 15 2 2 5 2 0 26
October death % 57.7 7.7 7.7 19.2 7.7 0 100
November death Count 50 9 12 19 3 0 93
November death % 53.8 9.7 12.9 20.4 3.2 0 100
December death Count 102 16 12 34 3 1 168
December death % 60.7 9.5 7.1 20.2 1.8 0.6 100
January death Count 60 20 16 22 1 1 120
January death % 50.0 16.7 13.3 18.3 0.8 0.8 100
Total death Count 601 223 113 249 32 2 1,220
Total death % 49.3 18.3 9.3 20.4 2.6 0.2 100
Total death rate per 100K population 133.1 115.9 70.1 120.3 N/A N/A 117.3

Deaths by ZIP Code

map showing deaths by ZIP Code

Based on ZIP code of residence

This ZIP Code data will next be updated on 1/29/2021.

Deaths by ZIP Code Data

ZIP Code Number of Deaths
20706 1
20723 1
20740 1
20746 1
20746 1
20783 2
20810 1
20814 37
20815 41
20816 11
20817 39
20818 1
20832 25
20833 6
20837 2
20839 3
20841 6
20842 2
20850 76
20851 6
20852 72
20853 30
20854 48
20855 12
20860 13
20861 3
20866 15
20868 1
20871 10
20872 12
20874 36
20876 17
20877 45
20878 35
20879 22
20882 6
20886 38
20895 32
20901 38
20902 78
20903 32
20904 99
20905 15
20906 120
20910 58
20912 31
21050 1
21113 1
21771 1
21797 1

Nursing Home Cases and Deaths

Numbers may not match with those reported by MDH due to reporting lags.

Case Fatality Rate = (# deaths / # cases) * 100

Deaths Cases Deaths Case Fatality Rate
Nursing Home 3,313 555 16.8
Non-Nursing Home 52,694 665 1.3
Total 56,007 1,220 2.2

Rt (time-varying reproduction number)

See Rt graph previously on this page.


Open "Montgomery County Employee Cases" in a new window - view more easily on mobile devices!