Addresses on 20th St in Watertown South Dakota
- 10 20th Ave
- 10 20th St
- 1003 20th St
- 1004 20th St
- 1009 20th St
- 1010 20th St
- 1015 20th St
- 1016 20th St
- 1021 20th St
- 1022 20th St
- 1027 20th St
- 1028 20th St
- 103 20th St
- 11 20th St
- 1100 20th St
- 1101 20th St
- 1106 20th St
- 1107 20th St
- 1112 20th St
- 1113 20th St
- 1116 20th St
- 1118 20th St
- 1119 20th St
- 1120 20th St
- 115 20th St
- 119 20th St
- 120 20th St
- 1220 20th St
- 1230 20th St
- 125 20th St
- 1304 20th St
- 1316 20th St
- 1332 20th St
- 1338 20th St
- 1344 20th St
- 1350 20th St
- 1356 20th St
- 1402 20th Ave
- 1426 20th Ave
- 17 20th St
- 18 20th St
- 20 20th Ave
- 201 20th Ave
- 202 20th Ave
- 203 20th St
- 205 20th St
- 208 20th Ave
- 2135 20th Ave
- 2137 20th Ave
- 214 20th Ave
- 220 20th Ave
- 23 20th St
- 2306 20th Ave
- 29 20th St
- 300 20th Ave
- 301 20th Ave
- 301 20th Ave
- 305 20th Ave
- 306 20th Ave
- 312 20th Ave
- 318 20th Ave
- 3800 20th Ave
- 3801 20th Ave
- 3801 20th Ave
- 3811 20th Ave
- 3821 20th Ave
- 3824 20th Ave
- 3901 20th Ave
- 3918 20th Ave
- 3921 20th Ave
- 400 20th Ave
- 4001 20th Ave
- 4002 20th Ave
- 4021 20th Ave
- 403 20th Ave
- 406 20th Ave
- 4101 20th Ave
- 4102 20th Ave
- 4109 20th Ave
- 411 20th Ave
- 4112 20th Ave
- 4116 20th Ave
- 4116 20th Ave
- 4119 20th Ave
- 412 20th Ave
- 4121 20th Ave
- 4125 20th Ave
- 4134 20th Ave
- 4148 20th Ave
- 415 20th Ave
- 4329 20th Ave
- 4413 20th Ave
- 4423 20th Ave
- 500 20th Ave
- 501 20th Ave
- 507 20th Ave
- 510 20th Ave
- 513 20th Ave
- 515 20th Ave
- 517 20th Ave