Blog · October 14, 2026 · Pennsylvania
Reading the Shamokin Flood Zone Map for a parcel
Flood zones are set by FEMA, and checking one near Herndon takes a few minutes.
Main page: Northumberland County, PA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Mount Carmel? A quick look at the Shamokin flood zone map shows whether FEMA puts it in a high-risk zone, and it costs nothing to check. In this Shamokin guide: locating a parcel on FEMA's map, reading the zone codes, and pairing it with the Northumberland County Basemap viewer.
Checking the Shamokin flood zone map step by step
Flood zones come from FEMA's Flood Map Service Center: type an address near Mount Carmel, and pick the FIRMette or map view. A tract near Marion Heights without an address is still easy to locate: zoom in from Interstate 180 and click inside the land.
Where the parcel data lives
Begin with the Northumberland County Basemap viewer; it includes every assessed parcel from Herndon to Kulpmont. Without an address in hand, pan along Interstate 180 and select the outline. On ground around Herndon, the parcel card typically gives the owner of record, assessed acreage, a parcel ID and sometimes recent sales.
City limits and county records
Shamokin lies within this county, and the county assessor maps its lots. In and around Northumberland, the municipality handles matters such as zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Lots just outside the city limits out by Herndon generally follows county rules instead.
Offices that can help
Questions about value or the owner field for land near Northumberland belong with the county assessment office, the office behind the parcel record. Building or septic questions for a lot near Sunbury go to planning, building or health offices, town or county, depending on location.
Beyond the mapped zones
Small streams around Mount Carmel aren't always studied in detail, so look for water marks and debris lines. Wet ground around Mount Carmel is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
Reading A, AE and X
Zone AE includes a base flood elevation (BFE), while plain Zone A does not; that elevation drives building rules near Sunbury. On ground around Northumberland, a shaded X area is moderate risk, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, means minimal mapped risk.
Matching the zone to the lot lines
FEMA doesn't draw property lines, so pair it with the Northumberland County Basemap viewer for the outline of the tract near Marion Heights.
Questions to ask before you buy
Ask the listing agent whether the home has flooded on the property near Herndon; getting a quote early keeps the budget honest.
Before you lean on the lines
Tax maps are drawn for assessment, not measured on the ground, so a tree line near Mount Carmel can sit several feet off the line on screen. Out toward Herndon, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Land on the county line
Northumberland County borders Columbia County, Dauphin County, Juniata County, Lycoming County, and Montour County, and each of those keeps its own parcel map. A tract near the line by Kulpmont can show up across two assessors' files, so open the neighboring map before you assume the acreage. In and around Sunbury, our state page lists each neighboring county map across Pennsylvania.
A quick look at the area
Sunbury serves as the county seat, where most land records are kept. Other places on the map include Kulpmont, Marion Heights, and Mount Carmel. Roughly 90,120 people live in Northumberland County (Census Bureau estimate, 2023) spread over some 458 square miles. Northumberland County dates to 1772, and some chains of title near Mount Carmel are long. Features like Susquehanna River are easy to spot when you zoom out from Kulpmont.
What a flood zone means for a buyer
If a building sits in a Special Flood Hazard Area and the loan is federally backed or regulated, flood insurance is generally required in communities in the NFIP, whether the land is near Marion Heights or elsewhere in the county. New construction in a floodplain near Herndon usually means extra permit review; ask the local floodplain administrator before you plan.
Quick answers
Where do I find the BFE for a lot near Mount Carmel?
Generally, the BFE is printed in AE zones on FEMA's map; surveyors near Marion Heights use it often.
What if the flood map is wrong for my lot near Mount Carmel?
In most cases, you can ask FEMA for a LOMA if surveyed elevations show the building near Herndon is above the BFE; a surveyor's elevation data supports it.
Can I see flood zones on the Northumberland County Basemap viewer?
Short answer: a flood layer may appear in the Northumberland County Basemap viewer layer list, but FEMA's own map is the official source.
Where can I see the Shamokin flood zone map for free?
Usually, search the address near Marion Heights on FEMA's Flood Map Service Center, and the zone code appears on the map.
What's a legal description for land near Kulpmont?
If you're looking near Mount Carmel, Deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official Northumberland County, PA 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.