Blog · October 14, 2026 · Rhode Island
Using the Washington County Flood Zone Map
Flood zones are set by FEMA, and checking one near Charlestown takes a few minutes.
Main page: Washington County, RI GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before you buy or build near North Kingstown, look at the Washington County flood zone map: a mapped flood zone changes insurance, building rules and resale. In this Washington County guide: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the RIGIS statewide Tax Parcels layer in ArcGIS Map Viewer.
Where the Washington County flood zone map lives
Closer to Carolina, the official source is FEMA's Flood Map Service Center: enter the street address, and choose the dynamic map. A tract near Ashaway without an address is still easy to locate: search the nearest road then click the parcel area.
The free map to start with
Begin with the RIGIS statewide Tax Parcels layer in ArcGIS Map Viewer; it maps each assessed parcel around Ninigret National Wildlife Refuge and Ashaway. If you only know roughly where the land is, follow US Route 1 on the aerial until the lines appear, then click inside the one you want, for land near Block Island National Wildlife Refuge included. With a lot near Block Island National Wildlife Refuge, save the parcel ID while you have it open; every office in the county will want it.
What the map can't tell you
Out toward North Kingstown, the acreage figure is a tax-roll number; only a licensed surveyor sets the real corners on the ground. For a home near Hope Valley, records update in batches, so a deed recorded last month might lag behind.
Reading the legal description
Tracts outside towns near Ashaway are often described by metes and bounds, listing bearings, distances and landmarks. Platted lots around Ashaway refer to a recorded plat, making them easier to find. Copy the legal description from the record for the parcel near Ashaway before you request a deed or survey.
Who handles what
Recorded documents for a parcel near Hope Valley come from the town or city clerk, sometimes only in person. Questions about what you can build around Charlestown go to planning, building or health offices, and the answer depends on jurisdiction.
Neighboring parcel maps
Washington County touches New London County, CT, Suffolk County, NY, Kent County, and Newport County, all with their own assessor records. A tract near the line by Exeter may be split in two county records, so look at the adjacent map as well. Around Kingston, the Platbookmapper state page links each neighboring county map across Rhode Island.
What the zone letters mean
Near North Kingstown, any A or V zone are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. Near Trustom Pond National Wildlife Refuge, a shaded X area marks moderate flood hazard, roughly the 100- to 500-year range; plain X, or C on older maps, means minimal mapped risk.
What to request from a seller
With a lot near Ashaway, ask the seller about past flood claims before closing; an insurance quote early keeps the budget honest.
Low spots and local drainage
Small streams around North Kingstown aren't always studied in detail, so walk the land after rain. Marshy spots near Charlestown can limit building too; check the National Wetlands Inventory mapper for a first look.
Matching the zone to the lot lines
FEMA's map shows zones but not ownership, so pair it with the RIGIS statewide Tax Parcels layer in ArcGIS Map Viewer to see exactly which lot near North Kingstown you're looking at.
What a flood zone means for a buyer
For land near Narragansett, an Elevation Certificate from a surveyor helps: it compares the building to the BFE. Building or adding on near Carolina in a mapped zone usually means extra permit review; call the permitting office before you plan.
Using it on a phone
Most viewers work in a phone browser, which helps when you're standing on land near Exeter, so load it before you lose signal. A printout of the tract near Bradford is a good backup.
Places you'll see on the map
Smaller places on the map include Charlestown, Exeter, Hopkinton, and Narragansett. Roughly 129,982 people live in Washington County (Census estimate, 2023) across some 329 square miles. Features like Block Island National Wildlife Refuge make handy reference points on the map.
Frequently asked
Can a property in Zone X near Exeter flood?
It depends, but X zones around Hope Valley are lower risk, not no risk; many owners near Hopkinton buy coverage anyway.
When is flood insurance required in Washington County?
For a building near Charlestown in an A or V zone with a federally backed or regulated mortgage, it's generally required, in communities that take part in the NFIP.
Can I see flood zones on the RIGIS statewide Tax Parcels layer in ArcGIS Map Viewer in Washington County?
If you're looking near Ashaway, a flood layer may appear in the RIGIS statewide Tax Parcels layer in ArcGIS Map Viewer layer list, though it can lag behind FEMA's current panels.
How can I tell if a house near Hope Valley is in a flood zone?
Look up the spot near North Kingstown in FEMA's National Flood Hazard Layer viewer, and the zone code appears on the map.
Can I use the viewer in the field near Hope Valley?
Out toward Hope Valley, no app is needed for most county viewers; screenshots help offline.
Open the official Washington County, RI 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.