Exemption: 1. For married person or head of family: unlimited exemption on real or personal property used as residence to 1/4 acre in city, town, or village, or 80 acres elsewhere; if property is between 1/4—1 acre in city, town, or village, or 80-160 acres elsewhere, additional limit is $2,500; homestead may not exceed 1 acre in city, town, or village, or 160 acres elsewhere (husband & wife may not double)