Table:
text: List of the most populous counties in the United States
List of the most populous US counties sorted according to the mid-2011 official estimate by the USCB
List of the most populous US counties sorted according to the mid-2011 official estimate by the USCB
Rank_ County State_ Land_area_km² Land_area_mi² April_1_2010_census April_1_2010_density_km² April_1_2010_density_mi² July_1_2010_official_estimate July_1_2010_density_km² July_1_2010_density_mi² July_1_2011_official_estimate July_1_2011_density_km² July_1_2011_density_mi² Mid_2010_to_mid_2011_change_Absolute Mid_2010_to_mid_2011_change_ County_seat_or_courthouse
72 Worcester County Massachusetts 3912.88 1510.77 798552 204 529 799300 204 529 801227 205 530 1927 0.24 Worcester
73 Hamilton County Ohio 1051.30 405.91 802374 763 1977 801948 763 1976 800362 761 1972 -1586 -0.20 Cincinnati
74 Hidalgo County Texas 4068.52 1570.87 774769 190 493 780030 192 497 797810 196 508 17780 2.28 Edinburg
75 Essex County New Jersey 326.89 126.21 783969 2398 6211 784099 2399 6213 785137 2402 6221 1038 0.13 Newark
76 Essex County Massachusetts 1275.73 492.56 743159 583 1509 744484 584 1511 748930 587 1520 4446 0.60 Salem
77 Multnomah County Oregon 1117.05 431.30 735334 658 1705 737476 660 1710 748031 670 1734 10555 1.43 Portland

Question: What is in the list of most populous counties in the United States from mid-2010 to mid-2011 if the density is 508 on July 1, 2011?