Blog · October 14, 2026 · Colorado
Severance Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Pierce takes a few minutes.
Main page: Weld County, CO GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Pierce, look at the Severance flood zone map: a mapped flood zone changes insurance, permits and resale. In this Severance guide: finding the address on FEMA's map, decoding A, AE and X, and confirming the outline on the county map.
Where the Severance flood zone map lives
The official source is FEMA's Flood Map Service Center: type an address near Windsor, then open the map view for that panel. Vacant ground around Pierce can still be found: zoom in from the nearest road then click the parcel area.
Pulling up a parcel
Begin with the Weld County parcel viewer; it maps each assessed parcel in the county, Eaton included. For property near Windsor, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near Garden City, the parcel card usually lists the owner of record, acreage on the tax roll, the parcel number and sometimes recent sales.
On site with the map
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Windsor, though signal can drop in rural spots. A saved image of the lot near Pierce and its lines keeps working without signal.
Where Severance fits in
Severance sits in Weld County, Colorado, which means parcel data comes from the county. For property near Greeley, City or town hall handles matters such as zoning, permits and utilities within town limits, while the county keeps the tax map. Land beyond the town limits toward Eaton generally falls under county rules instead.
Decoding the flood zone labels
Zone AE comes with a base flood elevation, which plain A zones lack; builders around Windsor design to it. For acreage around Windsor, shaded Zone X marks moderate flood hazard, roughly the 100- to 500-year range; plain X, or C on older maps, is minimal risk.
Use the county map alongside FEMA
FEMA doesn't draw property lines, so open the Weld County parcel viewer next to confirm you have the right parcel near Pierce.
How land is described here
Colorado is laid out under the Public Land Survey System, so rural legal descriptions near Windsor cite section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though sections near Pierce can be irregular. Write down the legal description for the tract near Windsor when you talk to a surveyor.
Lenders and permits
For a structure inside an A or V zone and the loan is federally backed or regulated, mandatory purchase rules apply where the community participates in the National Flood Insurance Program, which applies near Eaton as much as anywhere. Building or adding on near Eaton in a mapped zone often needs a floodplain permit; check with the county or town building office before you plan.
A quick look at the area
Greeley holds the county offices, which is where the courthouse records live. You'll also find Windsor, Eaton, and Ault, each with its own cluster of lots. Around 359,442 people call Weld County home (Census estimate, 2023) across some 3,985 square miles. Weld County dates to 1861, and some chains of title near Ault are long. Features like Pawnee National Grassland help you orient on the aerial around Pierce.
Land on the county line
Weld County meets Adams County, Boulder County, Broomfield County, Larimer County, and Logan County, and each of those keeps its own parcel map. A tract near the line by Pierce may be split across two assessors' files, so open the adjacent map as well. With a lot near Greeley, our state page lists every neighboring county map across Colorado.
Questions to ask before you buy
Ask the listing agent for any Elevation Certificate on the property near Pierce; getting a quote early keeps the budget honest.
Recorded documents worth pulling
Before you sign anything, pull the recorded deed through the County Clerk and Recorder; the parcel map near Garden City only summarizes it. On ground around Ault, bring the instrument number shown in the record panel so staff can find the deed fast.
Low spots and local drainage
Creeks and ditches near Pierce aren't always studied in detail, so walk the land after rain. Wet ground around Ault is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
Severance: common questions
What is a base flood elevation near Eaton?
Good question; the base flood elevation is the water level expected in the 1% annual chance flood; surveyors near Greeley use it often.
How often are flood maps updated for land near Eaton?
For most people, a new study can move a zone line near Windsor; your community is notified before changes take effect.
When is flood insurance required in Severance?
For most people, for a building near Garden City in an A or V zone with a federally backed or regulated mortgage, it's generally required; elsewhere it's optional.
Can a property in Zone X near Ault flood?
Short answer: Zone X near Garden City means moderate (shaded) or minimal (unshaded) mapped risk; FEMA notes that a large share of claims come from these areas.
What is a parcel ID near Ault?
It's the number the County Assessor uses to track a tract near Ault, and it's on the record panel and tax bills.
Open the official Weld County, CO parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.