| ALABAMA |
| Boaz (42) (Walco) | | 990 River Oaks Road | | | | Boaz , AL 35957 |
| | Phone: | (256) 593-9766 | | Fax: | (256) 593-9767 | | Toll Free: | (800) 438-1615 |
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| ALBERTA |
| Walco Canada Animal Health (138) (Walco) | | 4701 - 91 Ave | | | Edmonton, AB T68 2M7 |
| | Phone: | (780) 468-4479 | | Toll Free: | (877) 740-0643 |
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| ARIZONA |
| Chandler (56) (Walco) | | 550 E Frye Rd Ste 1 | | | | Chandler , AZ 85225-6383 |
| | Phone: | (480) 963-1754 | | Fax: | (480) 963-1701 |
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| ARKANSAS |
| Springdale (31) (Walco) | | 1202 Esi Dr | | | | Springdale , AR 72764-4628 |
| | Phone: | (479) 750-4040 | | Fax: | (479) 750-0440 | | Toll Free: | (800) 438-1615 |
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| CALIFORNIA |
| Bakersfield (63) (Walco) | | 4840 E Brundage Ln | | Po Box 70700 | | | Bakersfield , CA 93307 |
| | Phone: | (661) 635-3035 | | Fax: | (661) 635-3039 |
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| El Centro (54) (Walco) | | 1203 N Imperial Ave | | Po Box 1805 | | | El Centro , CA 92243-1311 |
| | Phone: | (760) 352-5922 | | Fax: | (760) 352-0053 |
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| Modesto (71) (Walco) | | 1908 Rockefeller Dr | | Po Box 1069 | | | Ceres , CA 95307-1069 |
| | Phone: | (209) 538-2750 | | Fax: | (209) 538-3156 | | Toll Free: | (877) 999-8007 |
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| Ontario (51) (Walco) | | 1906 E Cedar | | | | Ontario , CA 91761-8009 |
| | Phone: | (909) 947-4957 | | Fax: | (909) 947-3624 |
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| Red Bluff (72) (Walco) | | 1115 Metzger St (no Mail Del) | | Po Box 1022 | | | Red Bluff , CA 96080-1022 |
| | Phone: | (530) 527-1888 | | Fax: | (530) 527-7665 | | Toll Free: | (800) 326-7764 |
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| Visalia (103) (SW / Walco) | | 8711 West Doe Ave | | | | Visalia , CA 93291 |
| | Phone: | (559) 635-3800 | | Fax: | (559) 635-3860 |
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| COLORADO |
| Greeley (7) (Walco) | | 303 8th Ave | | | | Greeley , CO 80631-2333 |
| | Phone: | (970) 352-0400 | | Fax: | (970) 356-1807 | | Toll Free: | (800) 826-2825 |
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| FLORIDA |
| Mayo (21) (Walco) | | 343 W Main | | Po Box 298 | | | Mayo , FL 32066-0298 |
| | Phone: | (386) 294-2802 | | Fax: | (386) 294-3480 | | Toll Free: | (800) 642-1453 |
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| Okeechobee (22) (Walco) | | 2300 Nw 9th St | | | | Okeechobee , FL 34972 |
| | Phone: | (863) 763-0261 | | Fax: | (863) 763-1636 |
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| Thonotosassa (20) (Walco) | | 10418 Main St | | | | Thonotosassa , FL 33592-0248 |
| | Phone: | (813) 986-2491 | | Fax: | (813) 986-6640 | | Toll Free: | (800) 282-7706 |
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| HAWAII |
| Kamuela (98) (Walco) | | Kauka Ln | | Po Box 1062 | | | Kamuela , HI 96743 |
| | Phone: | (800) 785-8006 | | Fax: | (808) 885-0898 |
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| IDAHO |
| Twin Falls (81) (Walco) | | 203 Fourth Ave W | | | | Twin Falls , ID 83301-6313 |
| | Phone: | (208) 733-2869 | | Fax: | (208) 734-6634 | | Toll Free: | (800) 547-9306 |
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| KANSAS |
| Dodge City (10) (Walco) | | 1210 E Trail | | Po Box 1635 | | | Dodge City , KS 67801-1635 |
| | Phone: | (620) 225-0246 | | Fax: | (620) 225-6238 | | Toll Free: | (800) 223-1086 |
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| Garden City (4) (Walco) | | 3390 W Jones Ave | | Po Box 475 | | | Garden City , KS 67846-0475 |
| | Phone: | (620) 277-0025 | | Fax: | (620) 277-2340 | | Toll Free: | (800) 777-2561 |
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| Salina (19) (Walco) | | 1449-a W Old Hwy 140 | | | | Salina , KS 67401 |
| | Phone: | (785) 825-0811 | | Fax: | (785) 827-2913 | | Toll Free: | (800) 657-2519 |
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| Scott City (65) (Walco) | | 700 E 5th Street | | | | Scott City , KS 67871 |
| | Phone: | (620) 872-0309 | | Fax: | (620) 872-0247 |
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| MONTANA |
| Great Falls (87) (Walco) | | 4700 Tenth Ave S | | | | Great Falls , MT 59405-1096 |
| | Phone: | (406) 761-1788 | | Fax: | (406) 452-9060 | | Toll Free: | (800) 841-9798 |
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| NEBRASKA |
| Fremont (9) (Walco) | | 4221 N Broad St | | | | Fremont , NE 68025-9804 |
| | Phone: | (402) 727-4818 | | Fax: | (402) 727-8425 | | Toll Free: | (800) 642-8455 |
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| Gering (8) (Walco) | | 2838 N 10th St | | | | Gering , NE 69341-2232 |
| | Phone: | (308) 632-6611 | | Fax: | (308) 632-2455 | | Toll Free: | (800) 634-9312 |
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| Wisner (70) (Walco) | | 1615 Avenue E | | | | Wisner , NE 68791 |
| | Phone: | (402) 529-2200 | | Fax: | (402) 529-6900 |
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| NEVADA |
| Elko (83) (Walco) | | 2091 Last Chance Road | | | | Elko , NV 89801 |
| | Phone: | (775) 738-7449 | | Fax: | (775) 738-8387 | | Toll Free: | (800) 735-2474 |
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| Fallon (73) (Walco) | | 150 Industrial Way | | | | Fallon , NV 89406-3117 |
| | Phone: | (775) 423-7516 | | Fax: | (775) 423-7908 |
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| NEW MEXICO |
| Clovis (1) (Walco) | | 901 W Brady | | Po Box 459 | | | Clovis , NM 88101-9103 |
| | Phone: | (505) 762-7709 | | Fax: | (505) 763-4105 | | Toll Free: | (800) 528-9047 |
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| Roswell (40) (Walco) | | 1713 Se Main St | | | | Roswell , NM 88201 |
| | Phone: | (505) 625-9731 | | Fax: | (505) 625-9736 | | Toll Free: | (800) 524-4338 |
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| NORTH CAROLINA |
| Clinton (23) (Walco) | | 315 Industrial Drive | | | | Clinton , NC 28328 |
| | Phone: | (910) 590-2799 | | Fax: | (910) 590-2496 | | Toll Free: | (800) 438-1615 |
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| NORTH DAKOTA |
| Dickinson (80) (Walco) | | 2540 Fourth St E | | | | Dickinson , ND 58601 |
| | Phone: | (701) 483-0305 | | Fax: | (701) 483-4719 | | Toll Free: | (800) 785-6497 |
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| OKLAHOMA |
| Guymon (2) (Walco) | | 1517 Hwy 54 Ne | | Po Box 827 | | | Guymon , OK 73942-0827 |
| | Phone: | (580) 338-3807 | | Fax: | (580) 338-0935 | | Toll Free: | (800) 543-8847 |
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| Woodward (76) (Walco) | | 900 North Lakeview (no Mail Del) | | | Woodward , OK 73802 |
| | Phone: | (580) 254-3079 | | Fax: | (580) 254-3894 | | Toll Free: | (888) 297-6281 |
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| SOUTH DAKOTA |
| Sioux Falls (17) (Walco) | | 1601 E Rice St | | | | Sioux Falls , SD 57103-0122 |
| | Phone: | (605) 336-1070 | | Fax: | (605) 334-1027 | | Toll Free: | (800) 779-1070 |
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| Sturgis (41) (Walco) | | 2840 Vanocker Rd | | Po Box 849 | | | Sturgis , SD 57785-0849 |
| | Phone: | (605) 347-4533 | | Fax: | (605) 347-3371 | | Toll Free: | (800) 742-0081 |
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| TENNESSEE |
| Memphis Division (64) (Walco) | | 4605 Hickory Hill Rd Ste 104 | | | | Memphis , TN 38141 |
| | Phone: | (901) 566-2577 | | Fax: | (901) 566-2588 | | Toll Free: | (877) 878-8091 |
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| TEXAS |
| Abilene (52) (Walco) | | 3265 N Judge Ely (79601) | | Po Box 3175 | | | Abilene , TX 79604 |
| | Phone: | (325) 673-4692 | | Fax: | (325) 676-5624 | | Toll Free: | (800) 456-6663 |
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| Amarillo (11) (Walco) | | 2912 Se Third Ave | | | | Amarillo , TX 79104 |
| | Phone: | (806) 374-7564 | | Fax: | (806) 379-6141 | | Toll Free: | (800) 658-6011 |
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| Bowie (68) (Walco) | | 1318 Fm 174 | | Po Box 472 | | | Bowie , TX 76230 |
| | Phone: | (940) 872-9660 | | Fax: | (940) 872-2554 | | Toll Free: | (800) 422-2632 |
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| Dalhart (16) (Walco) | | Hwy 54 W | | Po Box 245 | | | Dalhart , TX 79022-0245 |
| | Phone: | (806) 244-6524 | | Fax: | (806) 244-4043 | | Toll Free: | (800) 582-1860 |
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| El Paso (6) (Walco) | | 11199 Rojas Dr | | | | El Paso , TX 79935-5406 |
| | Phone: | (915) 591-4166 | | Fax: | (915) 591-0799 |
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| Hereford (3) (Walco) | | 200 W 1st St | | Po Box 1190 | | | Hereford , TX 79045-1190 |
| | Phone: | (806) 364-1714 | | Fax: | (806) 364-6387 | | Toll Free: | (877) 206-1704 |
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| Nacogdoches (46) (Walco) | | 1409 S University | | | | Nacogdoches , TX 75961 |
| | Phone: | (936) 462-8495 | | Fax: | (936) 462-8489 | | Toll Free: | (800) 438-1615 |
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| Pleasanton (5) (Walco) | | 201 Jr Blvd | | Po Box 89 | | | Pleasanton , TX 78064-0089 |
| | Phone: | (830) 569-2151 | | Fax: | (830) 569-6037 |
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| Stephenville (28) (Walco) | | 3058 S Washington | | Po Box 954 | | | Stephenville , TX 76401 |
| | Phone: | (254) 965-2200 | | Fax: | (254) 965-2205 | | Toll Free: | (800) 588-2828 |
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| Texarkana (58) (Walco) | | 1815 South Kings Hwy | | | | Texarkana , TX 75501 |
| | Phone: | (903) 794-2178 | | Fax: | (903) 838-5943 | | Toll Free: | (800) 552-5095 |
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| Wichita Falls (13) (Walco) | | 2921 North-central Frwy | | | | Wichita Falls , TX 76306 |
| | Phone: | (940) 851-0050 | | Fax: | (940) 851-0053 |
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| UTAH |
| Cache Valley (90) (Walco) | | 6295 N 2150 West | | | | Amalga , UT 84335 |
| | Phone: | (435) 563-4744 | | Fax: | (435) 563-5577 | | Toll Free: | (800) 282-7490 |
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| Spanish Fork (86) (Walco) | | 640 South | | | | Spanish Fork , UT 84660 |
| | Phone: | (801) 798-7347 | | Fax: | (801) 798-7349 | | Toll Free: | (800) 333-1545 |
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| WASHINGTON |
| Sunnyside (84) (Walco) | | 120 E South Hill Rd | | | | Sunnyside , WA 98944 |
| | Phone: | (509) 837-3590 | | Fax: | (509) 837-4167 | | Toll Free: | (800) 572-8382 |
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