In Sapporo, we found 29 film labs.
They support 35mm C-41 develop+scan (median 1600 JPY), E-6 processing, 120 film processing, and mail-in orders.
1-288-13 Kotoni 2 Jō, 1-chōme, Nishi Ward, Sapporo, Hokkaido 063-0812, Japan
1 Minami-3-7 Hondōri, Shiroishi Ward, Sapporo, Hokkaido 003-0026, Japan
4th Floor, 3-2-2 Kita 2-jōhigashi, Chuo-ku, Sapporo, Hokkaido 060-0032, Japan
Sapporo Tokyu Department Store, 5th–6th Floors, 2-1 Kita 4 Jonishi, Chuo-ku, Sapporo, Hokkaido 060-8619, Japan
7th Floor, Sapporo Mitsukoshi Main Building, 3-chōme-8 Minami 1 Jonishi, Chuo Ward, Sapporo, Hokkaido 060-0061, Japan
2F, Kitago Hokkai Building, 3-10 Kitago 4-jō 9-chōme, Shiroishi Ward, Sapporo, Hokkaido 003-0834, Japan
1st Floor, 6-chōme-1, Ōdōrinishi, Chuo Ward, Sapporo, Hokkaido 060-0042, Japan
9-chōme-1-5 Hiragishi 1 Jō, Toyohira Ward, Sapporo, Hokkaido 062-0931, Japan
Asty 45 Building, B1F, 5-chome Kita 4-jo Nishi, Chuo Ward, Sapporo, Hokkaido 060-0004, Japan
1F, AEON Sapporo Moiwa, 2-1-1 Kawazoe 2-jō, Minami-ku, Sapporo, Hokkaido 005-0802, Japan
006-0811, 1-11-1 Maeda 1-jō, Teine Ward, Sapporo, Hokkaido, Japan, AEON Sapporo Teine Ekimae Shopping Center
16-chōme 1-3 Kita 18 Jōhigashi, Higashi-ku, Sapporo, Hokkaido 065-0018, Japan
1F, Entotsu Hiroba, Sapporo Factory, 4-chōme Kita 2 Jōhigashi, Chūō-ku, Sapporo, Hokkaido 060-0032, Japan
1-1 Higashisapporo 5 Jō, Shiroishi Ward, Sapporo, Hokkaido 003-0005, Japan
5-chōme-1-22 Kita 6 Jōnishi, Kita Ward, Sapporo, Hokkaido 060-0806, Japan
Primo Amore 1F, 6-chōme-5-28 Sakaedōri, Shiroishi Ward, Sapporo, Hokkaido 003-0021, Japan
003-0003, Rainbow Building B1F, 4-5-11 Higashisapporo 3 Jō, Shiroishi Ward, Sapporo, Hokkaido, Japan
21-chōme-1-1 Kita 25 Jōhigashi, Higashi Ward, Sapporo, Hokkaido 065-0025, Japan
1-2-5 Oyachinishi, Atsubetsu-ku, Sapporo, Hokkaido 004-0042, Japan
1-2-5 Oyachinishi, Atsubetsu Ward, Sapporo, Hokkaido 004-0042, Japan
3-chōme-6-31 Nishioka 4 Jō, Toyohira Ward, Sapporo, Hokkaido 062-0034, Japan
9-chōme-10-24 Nishino 3 Jō, Nishi Ward, Sapporo, Hokkaido 063-0033, Japan
3F, Sapporo Tokyu Department Store, 1, 2-chome, Kita 4-jo Nishi, Chuo-ku, Sapporo, Hokkaido 060-8619, Japan
4 Chome, Kita 2 Johigashi, Chuo Ward, Sapporo, Hokkaido 060-0032, Japan
CAPO Oyachi, 3-3-20 Oyachihigashi, Atsubetsu Ward, Sapporo, Hokkaido 004-0041, Japan
Inside Kita 24-jo Store, 9-chome-1-1 Kita 24-jonishi, Kita Ward, Sapporo, Hokkaido 001-0024, Japan
1, Kita 1-jō Nishi, 2-chōme, Chuo-ku, Sapporo, Hokkaido 060-0001, Sapporo Clock Tower Building, B1F, Japan
1F, Fujifilm Sapporo Building, 6-1 Odorinishi, Chuo-ku, Sapporo, Hokkaido 060-0042, Japan
5-5, 5-chōme, Kita 7 Jōnishi, Kita-ku, Sapporo, Hokkaido 060-0807, Japan