Published
What FEMA’s flood map actually shows for Fremont County: participation since 1991, and not one digitized panel.
Two facts that sound contradictory, and aren’t
Fremont County has been in the federal flood program for decades — and FEMA’s digital flood map, the one every map app now leans on, holds nothing for it. Both halves of that sentence were verified directly on 15 September 2026, from FEMA’s own community-status report and from the query service behind the National Flood Hazard Layer. Neither half is secret. Together they explain a very common confusion: a parcel lookup that comes back empty.
“Community Status Book Report — Communities Participating in the National Flood Program — FREMONT COUNTY”
— Federal Emergency Management Agency, Community Status Book for Idaho (hosted by the Idaho Department of Water Resources; report dated 23 January 2018), Fremont County row, CID 160061. Retrieved 15 September 2026
What the status book actually records
The row for unincorporated Fremont County carries these entries:
| Status book column | Fremont County entry |
|---|---|
| Community Identification Number | 160061 |
| Initial Flood Insurance Rate Map identified | March 18, 1991 |
| Regular program entry | April 10, 1991 |
| Initial Flood Hazard Boundary Map identified | December 6, 1977 |
| Other participating communities in the county | The City of St. Anthony only (CID 160062) |
The short version: the county’s flood hazard history on paper goes back to a 1977 hazard boundary map, and the county has been a participating community in the National Flood Insurance Program since regular program entry on April 10, 1991 — rate maps identified that March 18. Participation is the old, deep kind — which makes the next fact stranger.
The digital layer is empty — verified, not assumed
The National Flood Hazard Layer is the database behind FEMA’s online flood maps. Queried at the county identifier, it returns zero studies and zero map panels for Fremont County — no digitized flood hazard zones, no digital map tiles, nothing for a parcel lookup to draw. The same query on a neighboring digitized county returns dozens of panels, so the method works; the zero is a real zero.
What that means in plain terms:
- An online flood-map lookup that shows nothing over a Fremont County parcel is showing an absence of digital data, not an absence of flood hazard
- The county’s mapped hazard areas exist on the older mapping the program started with — documents, not layers
- Anyone telling you “the FEMA map says you’re clear” because the app drew a blank is reading the wrong document — or no document at all
Why this matters for dirt work specifically
The county’s own paperwork already asks the question. The excavation and grading application has a blank for whether the proposed activity sits in the FEMA-designated 100-year floodplain, and which zone — the screening side of which this site covers on the grading-permit page, alongside the slope brackets on the steep-ground page. Answering that blank honestly means going to the source mapping, not to a digital layer that has nothing to show. Downstream of dirt work, the same mapped-hazard question shapes structure design — the flood-clearance figures a crossing must meet are on the bridge page — and the roadside drainage the county does require is sized on the drainage page, whatever the flood map does or does not draw.
The county’s zoning treats the mapped Special Flood Hazard Areas as a live overlay regardless of their digital availability; the rules that attach inside that overlay are their own subject. This page’s subject is narrower: what the mapping is, and where it lives.
How this page was checked
- Pulled the Community Status Book for Idaho as hosted by the state water resources department, and read the Fremont County row — community number 160061, mapping milestones as tabled above.
- Queried FEMA’s National Flood Hazard Layer service at the county’s identifiers: zero features in the availability layer, zero in the map-panel layer, county-wide.
- Ran the identical query against a digitized neighboring county as a control — it returns panels, confirming the zeros mean no data rather than a failed lookup.
- Recorded both retrieval dates here: the status book is a hosted report dated 23 January 2018; the digital-layer query is from 15 September 2026. Re-check both before relying on either.
A dated method is the whole point. “The map is blank” is a fact about a database on a day, and facts about databases change when the database does — a digitization project would end this page’s premise, and none of the sources here announces one.
What to do before you build
- Get the parcel’s legal description together — the flood question is answered by document, and the documents key to the parcel.
- Pull the flood mapping for the parcel from FEMA’s Map Service Center, or sit down with it through the county’s offices — the source documents, not the empty layer.
- Carry the answer into the county’s grading application floodplain blank — the zone, not a shrug.
- If water work or a crossing is involved, put the mapped hazard and the structure standards in the same conversation before anything is designed.
- Write down what you were shown and its date — in a county whose mapping is paper-era, the record you keep is the record there is.
- And put the ground itself in front of someone who reads maps for a living before the first pass — (208) 932-1140.
Common questions
Does Fremont County participate in the National Flood Insurance Program?
Yes. The Community Status Book for Idaho lists unincorporated Fremont County as a participating community, CID 160061, with a Flood Insurance Rate Map identified March 18, 1991, regular program entry April 10, 1991, and a 1977 Flood Hazard Boundary Map before that.
Why does the FEMA online flood map show nothing over my parcel?
Because there is nothing in the digital layer to show. FEMA's National Flood Hazard Layer holds zero studies and zero digitized map panels for Fremont County, verified by direct query — so the online map cannot draw hazard zones for the county, even though paper-era mapping exists.
Does a blank digital map mean my land has no flood hazard?
No. The blank is an absence of digitized data, not a determination. The county's mapped hazard areas exist on the older mapping the program started with, and the county's own permit applications still ask the floodplain question.
What is Fremont County's FEMA community number?
160061 for unincorporated Fremont County. The only other participating community in the county is the City of St. Anthony, 160062 — its city-level flood mapping is a separate subject from this county-wide page.
Where can I actually see the flood map for my parcel?
Through FEMA's Map Service Center or the county's offices, which hold the effective mapping for the county. The point of this page: fetch the document rather than trusting a digital layer that has no data for the county.
How current is the information on this page?
The community status report is a state-hosted copy dated 23 January 2018; the digital-layer query was run 15 September 2026. Both dates are printed on the page — re-verify before relying on either, since digitization would change the answer.
Do county permits ask about flood zones even without digital maps?
Yes. The county's excavation and grading application asks whether the proposed activity is in the FEMA-designated 100-year floodplain and which zone — a document question you answer from the source mapping, not from an empty online layer.
Is the county's flood mapping being digitized or updated?
Nothing in either source — the status book or the digital layer's current contents — announces a digitization project or a pending update for the county. Treat the state of this page's data as what was verified on its retrieval dates.
Does the flood overlay still apply if the digital map is empty?
The county's zoning adopts the mapped Special Flood Hazard Areas as an overlay district regardless of their digital availability — the overlay's rules are a separate subject this page does not restate. The mapping behind them is what this page locates: paper-era documents, not a digital layer.