Oomaero Marae is located in Whatawhata, 13 kms west of Hamilton. The primary hapuu for this marae is Ngaati Maahanga-Hourua of the Waikato confederation. The wharetupuna is named Te Awaitaaia and the wharekai is named Purehina. The marae connects ancestrally to Tainui waka, Pirongia maunga and Waipaa awa.