<filename>server/ahj_gis/admin.py
from django.contrib.gis import admin
from .models import *


class PolygonAdmin(admin.OSMGeoAdmin):

    search_fields = ('NAMELSAD', 'STATEABBR', 'GEOID')


# Register your models here.
admin.site.register(Polygon, PolygonAdmin)
admin.site.register(County, admin.OSMGeoAdmin)
admin.site.register(City, admin.OSMGeoAdmin)
admin.site.register(Zip, admin.OSMGeoAdmin)

<filename>server/ahj_gis/admin.py
from django.contrib.gis import admin
from .models import *


class PolygonAdmin(admin.OSMGeoAdmin):

    search_fields = ('NAMELSAD', 'STATEABBR', 'GEOID')


# Register your models here.
admin.site.register(Polygon, PolygonAdmin)
admin.site.register(County, admin.OSMGeoAdmin)
admin.site.register(City, admin.OSMGeoAdmin)
admin.site.register(Zip, admin.OSMGeoAdmin)

# Register your models here.