Average GPS coordinates for Umuihi Postcode location: 5.258, 7.375. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Umuihi on map:

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Listing cities & postcodes (2):
>> Abia, 451108 Umuihi, Isiala Ngwa South, GPS coordinates: 5.25832, 7.37503
>> Abia, 451108 Umuihi, Isiala Ngwa South, GPS coordinates: 5.25832, 7.37503