walcha postcode nswst Home ›› Postcode Finder ›› NSWST ›› Walcha Walcha local listingsThe suburb of Walcha is located in NSW and has a postcode of 2354. Free walcha business listing! 1Walcha Central School154 E North St 02 677727772St Patrick's Primary School51 South St 02 677723283Minchin Moore Pty Ltd5W Hamilton Street Walcha NSW +61 2 8978 9500 View more business listings in walcha Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.