Table 1.
List of urban environments analyzed in this study. The Lat. and Long. columns refer to the latitude and longitude coordinates of the edges of the boundaries around each region. The fourth column lists the multiple counties inside each region, and the last column lists the effective dates of the stay-at-home/lockdown orders issued in each state.
| Region | Lat. (°N) | Long. (°W) | Counties Included | Effective Dates |
|---|---|---|---|---|
| Washington DC | 38.60 to 39.60 | 77.30 to 76.10 | DC, Baltimore, Arlington, Alexandria, Prince George's, Howard, Anne Arundel | Apr. 1 - May 15 - DC Mar. 30 - May 7 - MD |
| New York | 40.30 to 41.10 | 74.60 to 73.30 | New York, Kings, Queens, Bronx, Hudson, Richmond, Essex, Nassau, Union, Bergen | Mar. 22 - May 15 - NY Mar. 24 - May 2 - NJ |
| Philadelphia | 39.80 to 40.20 | 75.40 to 74.75 | Philadelphia, Delaware, Camden, Montgomery, Bucks, Burlington | Apr. 1 - May 8 - PA Mar. 24 - May 2 - NJ |
| Dallas | 32.40 to 33.25 | 97.60 to 96.30 | Dallas, Tarrant, Denton, Collin, Rockwall, Kaufman | Apr. 2 - Apr. 30 - TX |
| Los Angeles | 33.40 to 34.60 | 119.0 to 117.0 | Los Angeles, Orange, Riverside, Ventura | Mar. 19 - May 8 - CA |
| Chicago | 41.45 to 42.50 | 88.20 to 87.25 | Cook, DuPage, Lake, Will | Mar. 21 - Apr. 30 - IL |
| Boston | 42.20 to 42.54 | 71.30 to 70.80 | Suffolk, Norfolk, Middlesex | Mar. 24 - May 4 - MA |
| Houston | 29.35 to 30.20 | 96.0 to 94.75 | Harris, Fort Bend, Galveston | Apr. 2 - Apr. 30 - TX |
| Detroit | 41.90 to 42.75 | 83.60 to 82.60 | Wayne, Oakland, Macomb | Mar. 24 - May 15 - MI |
| Phoenix | 33.17 to 33.98 | 112.5 to 111.5 | Maricopa, Pinal | Mar. 31 - Apr. 30 - AZ |
| Seattle | 47.12 to 48.06 | 122.6 to 122.0 | King, Snohomish | Mar. 23 - May. 4 - WA |