County · code 42067
Juniata CountyPennsylvania
Juniata County is a county in Pennsylvania, with its seat in Mifflintown. It was created on September 1, 1831, from Mifflin County and named after the Juniata River.
- Founded1831
- County seatMifflintown
- Named forJuniata River, Pennsylvania
- Land area391 sq mi + 2.1 sq mi water
- Population23,509 2020 Census
- Parcels mapped13,706 checked 15 October 2026
Where it is
Juniata on the map of Pennsylvania
Pennsylvania has 67 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1831 from Mifflin County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Juniata County was created from Mifflin County on September 1, 1831.
- 1831Juniata County created Juniata created from Mifflin. · Pa. Laws 1830-1831, no. 67, secs. 1-2/pp. 99-100
Land and parcels
What the maps cover in Juniata
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 13,706 parcels from Juniata County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 15 October 2026 -
Address points Missing
No public address points layer found for Juniata County yet.
-
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Juniata by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Juniata County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Juniata County.
See your own lot on these maps
Open Juniata County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Juniata County
- When was Juniata County founded?
- Juniata County was founded in 1831, formed from Mifflin County, and named after Juniata River, Pennsylvania.
- What is the county seat of Juniata County?
- The county seat of Juniata County is Mifflintown.
- Is there an online parcel map for Juniata County?
- Yes. Juniata County publishes a parcel map of 13,706 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Juniata County's boundary or name changed?
- Juniata County was created in 1831 from Mifflin County. The Atlas of Historical County Boundaries records no boundary change since.
- Is my lot in a flood zone?
- We do not have flood maps for Juniata County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby