Unacast has used data from smartphones to grade states and localities on how much social distancing is occurring. Their major measure is change in average mobility based on the distance traveled. So how’s Maryland doing? Overall, we get an “A” on their scoreboard.

Average distance traveled has declined 43% in Maryland. That still leaves us behind the following 14 jurisdictions: DC (60%), Alaska (52%), Nevada (51%), New Jersey (50%), Rhode Island (50%), California (48%), New York (48%), Massachusetts (47%), Connecticut (46%), Minnesota (46%), Vermont (46%), Louisiana (45%), Michigan (45%), and Pennsylvania (45%).

Here are the trends in average mobility as well as the number of reported cases. Remember that the number of reported cases is lower than the number of cases and depends a lot on testing.

There are substantial variations in social distancing by county:

Teal/turquoise indicates more social distancing (“A”) while orange indicates very weak social distancing (“F”). Forest green rates a “B” while army green indicates a “C” rating. No Maryland counties received a “D” rating. Here are the specific numbers for Maryland jurisdictions:

Change in Average Mobility
1. Montgomery (52%)
2. Carroll (47%)
2. Calvert (47%)
4. Anne Arundel (45%)
5. Baltimore County (43%)
5. Howard (43%)
5. Prince George’s (43%)
5. St. Mary’s (43%)
9. Dorchester (42%)
9. Frederick (42%)
11. Baltimore City (41%)
11. Harford (41%)
11. Talbot (41%)
11. Worcester (41%)
15. Charles (40%)
16. Wicomico (38%)
17. Kent (37%)
17. Queen Anne’s (37%)
19. Caroline (33%)
20. Somerset (29%)
21. Allegany (28%)
22. Cecil (25%)
23. Washington (21%)
24. Garrett (4%)

How does Montgomery compare to the rest of the metro area?

1. District of Columbia (60%)
2. Alexandria (55%)
2. Arlington (52%)
2. Fairfax City (52%)
2. Montgomery (52%)
6. Fairfax County (47%)
7. Loudoun (46%)
8. Prince George’s (43%)
9. Frederick (42%)
9. Prince William (42%)
11. Charles (40%)
11. Falls Church (40%)