missing census_geoid

[ma-23220]

How do we get the congressional district value from the api for the states below?
When I submit addresses for these states the cd: tag is not available.

Alaska
Delaware
District of Columbia
North Dakota
South Dakota
Vermont
Wyoming

It looks the census_geoid is not available in the current us_congressional_districts.csv, the id is "at-large" for these states.
Does that just mean the congressional district info is not available? When would this info be available or how do we request it?

Delaware
"kind": "civicinfo#representativeInfoResponse",
"divisions": {
"ocd-division/country:us/state:de/sldl:9": {
"name": "Delaware State House district 9",
"officeIndices": [
1
]
},
"ocd-division/country:us/state:de": {
"name": "Delaware",
"officeIndices": [
0
]
},
"ocd-division/country:us/state:de/county:new_castle": {
"name": "New Castle County",
"officeIndices": [
2
]
},
"ocd-division/country:us/state:de/county:new_castle/council_district:12": {
"name": "New Castle DE County Council District 12",
"officeIndices": [
3
]
}
},