Blog · October 14, 2026 · Texas
Somervell County Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Rainbow takes a few minutes.
Main page: Somervell County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
Weighing a property around Nemo? The Somervell County flood zone map tells you whether FEMA puts it in a high-risk zone, and no account is needed. This Somervell County guide covers: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the Texas county CAD map.
The Somervell County flood zone map: start here
For a parcel near Glen Rose, the official source is FEMA's Flood Map Service Center: enter the street address, and choose the dynamic map. Rural land near Nemo with no street number can still be found: search the nearest road then click the parcel area.
The free map to start with
Go first to the Texas county CAD map; it maps each assessed parcel around Glen Rose and Rainbow. For a parcel near Glen Rose, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. With a lot near Glen Rose, write down the parcel ID from that panel; each office in the county uses it to find the file.
Recorded documents worth pulling
The map is an index, not the title: deeds, subdivision plats and easements covering ground around Nemo are kept by the County Clerk. For acreage around Nemo, bring the document number shown in the record panel so staff can find the deed fast.
Zones on the Somervell County flood zone map
For acreage around Rainbow, zones beginning with A or V are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. In and around Glass, shaded Zone X is moderate risk, roughly the 100- to 500-year range; unshaded X is minimal risk.
What the map can't tell you
For acreage around Rainbow, listed acreage is an estimate; just a licensed surveyor can set the real lines on the ground. For a home near Nemo, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Offices that can help
Questions about value or the owner field for land near Glen Rose go to the appraisal district, which maintains the tax roll. Questions about what you can build around Glen Rose go to planning, building or health offices, depending on whether the land is inside town limits.
Beyond the mapped zones
Small streams around Glen Rose aren't always studied in detail, so walk the land after rain. Wetlands near Glen Rose can limit building even outside a flood zone; check the National Wetlands Inventory mapper for a first look.
Lining it up with the parcel map
FEMA doesn't draw property lines, so open the Texas county CAD map next to see exactly which lot near Glen Rose you're looking at.
When a parcel crosses a boundary
Somervell County touches Bosque County, Erath County, Hood County, and Johnson County; every one of them runs a separate parcel map. A tract near the line by Glen Rose may show up in two county records, so open the neighboring map as well. For land near Glen Rose, the Platbookmapper state page links each neighboring county map for Texas.
What to request from a seller
For property near Glen Rose, ask the seller whether the home has flooded before closing; an insurance quote early avoids surprises.
Somervell County in a few facts
Glen Rose serves as the county seat, where most land records are kept. Smaller places on the map include Glass, Nemo, and Rainbow, where town lots give way to larger tracts. Roughly 9,888 people call Somervell County home (Census estimate, 2023) on some 186 square miles. Somervell County was formed in 1875, which matters when you trace an old farm's title.
How land is described here
Tracts outside towns near Glass commonly use metes-and-bounds descriptions, listing bearings, distances and landmarks. Subdivision lots in Nemo refer to a recorded plat, which is simpler to follow. Copy the legal description from the record for the parcel near Nemo for any title or survey request.
Insurance, lenders and building
For a home near Rainbow, ask for an Elevation Certificate: it can change the insurance price a lot. Remodeling a house in a zone near Glass often needs a floodplain permit; check with the county or town building office early.
Using it on a phone
Most viewers work in a phone browser, which helps when you're standing on land near Nemo, but coverage can be spotty out of town. A printout of the tract near Glen Rose helps when you meet an owner or agent.
Quick answers
Is AE a high-risk flood zone near Glass?
Good question; AE is a Special Flood Hazard Area with a published base flood elevation, which shapes building rules near Rainbow.
Can I see flood zones on the Texas county CAD map near Rainbow?
For a home near Nemo, some county viewers include a FEMA flood layer, but FEMA's own map is the official source.
How often are flood maps updated around Nemo?
If the land is near Glass, FEMA revises flood maps panel by panel as new studies finish, so look at the panel date.
Why does the BFE matter near Glass?
Short answer: a BFE near Nemo tells builders how high the lowest floor should be; local rules may require building above it.
What's the tax parcel number used for around Nemo?
It's the number the appraisal district uses to track a tract near Nemo; you'll see it in the viewer and on tax statements.
Open the official Somervell County, TX 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.