Addresses on 1st Ave in Columbia Falls Montana
- 100 1st Ave
- 1003 1st Ave
- 1014 1st Ave
- 1020 1st Ave
- 1025 1st Ave
- 1026 1st Ave
- 1033 1st Ave
- 1036 1st Ave
- 105 1st Ave
- 106 1st Ave
- 106 1st Ave
- 110 1st Ave
- 113 1st Ave
- 116 1st Ave
- 118 1st Ave
- 120 1st Ave
- 121 1st Ave
- 124 1st St
- 125 1st Ave
- 131 1st Ave
- 134 1st Ave
- 161 1st St
- 175 1st St
- 180 1st Ave
- 180 1st Ave
- 185 1/2 1st St
- 201 1st Ave
- 206 1st Ave
- 207 1st Ave
- 211 1st Ave
- 220 1st Ave
- 220 1st Ave
- 221 1st Ave
- 225 1/2 1st Ave
- 230 1st Ave
- 234 1st Ave
- 235 1st Ave
- 262 1st Ave
- 263 1st Ave
- 263 1st Ave
- 273 1st Ave
- 273 1st Ave
- 280 1st Ave
- 280 1st Ave
- 285 1st Ave
- 285 1st Ave
- 300 1st Ave
- 305 1st Ave
- 311 1st Ave
- 312 1st Ave
- 312 1st Ave
- 314 1st Ave
- 316 1st Ave
- 321 1st Ave
- 321 1st Ave
- 322 1st Ave
- 324 1st Ave
- 329 1st Ave
- 333 1st Ave
- 361 1st St
- 405 1st Ave
- 406 1st Ave
- 409 1st Ave
- 413 1st Ave
- 414 1st Ave
- 419 1st Ave
- 422 1st Ave
- 427 1st Ave
- 503 1st Ave
- 504 1st Ave
- 512 1st Ave
- 516 1st Ave
- 517 1st Ave
- 519 1st Ave
- 519 1st Ave
- 520 1st Ave
- 526 1st Ave
- 530 1st Ave
- 533 1st Ave
- 536 1st Ave
- 536 1st Ave
- 537 1st Ave
- 604 1st Ave
- 612 1st Ave
- 612 1st St
- 624 1st Ave
- 632 1st Ave
- 632 1st Ave
- 632 1st Ave
- 635 1st Ave
- 635 1st St
- 65 1st St
- 706 1st Ave
- 706 1st Ave
- 714 1st Ave
- 720 1st Ave
- 726 1st Ave
- 729 1st Ave
- 730 1st Ave
- 795 1st Ave