Blog · October 14, 2026 · Pennsylvania
Mifflin County Flood Zone Map in Pennsylvania
FEMA's free flood maps and the Mifflin County parcel viewer, used together for property near Lewistown.
Main page: Mifflin County, PA GIS & Parcel Viewer (official map link, Mifflin County facts and neighboring maps).
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A Mifflin County flood zone map check belongs in the due diligence for any Mifflin County property, from a house lot in Newton Hamilton to farm ground near Kistler. FEMA's free Flood Map Service Center and the Mifflin County parcel viewer answer it together.
Next: FEMA's search tool, the zone labels you'll see for Mifflin County, and how the parcel record confirms which tract you're on.
How to check the Mifflin County flood zone map
FEMA's official flood maps for Mifflin County are free at the FEMA Flood Map Service Center. Download the FIRM panel FEMA lists as effective for that part of Mifflin County. If the PDF panel for Mifflin County is hard to read, the National Flood Hazard Layer viewer is easier to use; zoom to the piece of ground near Juniata Terrace and click. Then open the PASDA Pennsylvania Tax Parcels viewer for Mifflin County to confirm the parcel near Burnham. The Mifflin County record gives the parcel number and legal description that an insurer or lender near Burnham may ask for.
Step one: the free Mifflin County viewer
Mifflin County parcels are viewed through a statewide map, the PASDA Pennsylvania Tax Parcels viewer; zoom toward Lewistown to reach them. Most people find their Mifflin County tract fastest by searching an address in Juniata Terrace, then clicking the outline. Bookmark our Mifflin County page too; it tracks the official Pennsylvania link if it moves and lists the maps around Lewistown.
Reading the zones on a Mifflin County flood map
Any Mifflin County parcel shaded as Zone A, AE, AH or AO sits in what FEMA calls a Special Flood Hazard Area, defined by a 1-percent annual chance of being flooded. A surveyor working near Burnham uses the base flood elevation printed for AE zones; unnumbered A zones don't have one. If a Mifflin County parcel displays shaded Zone X, it falls between the base flood and the 500-year flood. Unshaded X (or C) on the Mifflin County panel means minimal risk.
Creeks, rivers and low ground in Mifflin County
The Mifflin County landscape includes Juniata River, and that's where flood questions cluster. Lines on those Mifflin County parcels frequently follow the water, so part of the tract can be mapped as high risk. A low spot on a Mifflin County tract outside any mapped zone can still flood; FEMA says moderate- and low-risk areas still carry risk.
A short buyer checklist for Kistler
For a house near Juniata Terrace, ask the seller for any elevation certificate on file and the current flood insurance declarations page. An agent working in Mifflin County can quote flood coverage once you know the zone for the lot near Juniata Terrace.
Reading the fine print on a Mifflin County panel
When FEMA restudies streams in the county, preliminary maps are posted before they take effect, and a lot near Alfarata can move in or out of a zone. A floodway on a county panel marks the part of the floodplain that carries the main flow, and it's treated more strictly than the rest of the zone near Alfarata.
Insurance, permits and map changes
Here's why the zone matters at a closing in Burnham. If a barn or house outside Burnham sits in a Special Flood Hazard Area and secures a loan from a federally regulated or insured lender, flood insurance is mandatory; that applies where the local government around Juniata Terrace is in the National Flood Insurance Program. For a county home in shaded or unshaded X, insurance is a choice, not a mandate; pricing a policy for land near Juniata Terrace is still worth a call. If a building near Juniata Terrace sits above the flood line, a Letter of Map Amendment request is the formal route, supported by elevation data from a licensed surveyor. Adding on to a house near Juniata Terrace inside the zone most frequently needs a floodplain permit, and the building office serving Juniata Terrace explains the steps.
Quick answers for Mifflin County
What does BFE mean on the flood map for McVeytown?
For a Mifflin County property in Zone AE, the base flood elevation marks how high the 100-year flood is expected to rise, and it's printed in AE zones.
Does the Mifflin County parcel map display flood zones?
Check the layer list in the PASDA Pennsylvania Tax Parcels viewer; if Mifflin County includes a floodplain layer, confirm the zone on FEMA's map anyway.
Can a flood zone in Mifflin County be changed?
FEMA reviews requests such as a LOMA for Mifflin County properties; start with an elevation certificate.
Does a 100-year floodplain near Newton Hamilton flood only once a century?
No; land near Newton Hamilton in the 100-year floodplain faces a 1-percent annual chance, so floods can come in back-to-back years.
What does Zone AE mean on a Mifflin County flood map?
Yes, a piece of ground near Newton Hamilton in Zone AE is high risk: a 1-percent-annual-chance floodplain where FEMA lists a base flood elevation.
Open the official Mifflin County, PA parcel map Mifflin County 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.