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Pennsylvania · Central Pennsylvania · Susquehanna Valley · #622 Most Populous County in the US
Northumberland County, Pennsylvania
Central Pennsylvania's Susquehanna River county - from Sunbury's historic Fort Augusta and Joseph Priestley House to Shamokin's anthracite coal heritage, the West Branch and North Branch Susquehanna confluence, and the valley communities connecting the anthracite coal region to the central Pennsylvania river corridor. Property tax, courts, public records, and senior services for Northumberland County residents.
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Northumberland County's assessment ratio means effective tax rates are low — but incorrect appraisals still cost money. Ownwell manages the appeal with no upfront cost.
Office: Northumberland County Department of Public Safety / Emergency Management Agency – 911 Greenough Street, Suite 2, Sunbury, PA 17801 | (570) 988-4217 | Fax: (570) 988-4375
Services: Formed in 1996 by combining the county 911 center with the Emergency Management Agency; serves a population of over 70,000 across 17 townships, 7 boroughs, and 2 cities; dispatches for 52 fire stations (8 housing rescue units), 19 fire police associations, 9 Basic Life Support stations, 9 Quick Response Squads, and 7 Advanced Life Support units; handles preparedness, mitigation, response, and recovery for floods, fires, storms, hazmat, and mass casualty incidents
Roads & Utilities
ROADS & TRANSPORTATION
Roads: US-11 and PA-61 serve Sunbury, the county seat, at the confluence of the North and West Branches of the Susquehanna River in central Pennsylvania
Transit: Limited; primarily auto-dependent – confirm current regional options directly with the county.
Business & Permits
BUILDING & PERMITS
Office: No countywide building department – permits are issued at the MUNICIPAL level
Services: Northumberland County Planning Department – 399 S. 5th St., 2nd Floor, Sunbury, PA 17801, (570) 988-4343 / (570) 988-4220, Hours: Mon 9 AM–4:30 PM, Tue–Fri 9 AM–4 PM, coordinates zoning requirements when no local zoning officer is listed; Sunbury Code Enforcement – 225 Market Street, Sunbury, PA, (570) 286-4207
Notes: Confirm the correct jurisdiction for your specific municipality.
Veterans Services
VETERANS SERVICES
County VSO: Northumberland County Veterans Affairs Office – Sunbury, PA
Libraries
LIBRARIES
System: Degenstein Community Library – 40 South Fifth Street, Sunbury, PA 17801 | (570) 286-2461 | Hours: Mon & Thu 12–7 PM, Tue/Wed/Fri 10 AM–6 PM, Sat 9 AM–1 PM (closed Sun)
Services: Holds over 76,000 volumes and circulates roughly 73,000 items annually, serving about 20,000 residents; offers 24/7 wifi access
Related: A second library location serves Milton, PA, (570) 742-7111; Northumberland County Historical Society – 1150 North Front Street, Sunbury, PA, houses the Charlotte Darrah Walter Genealogical Library and artifacts from Fort Augusta, open March through December (closed in winter).
Parks & Recreation
PARKS & RECREATION
Key Assets: The borough of Northumberland, within Northumberland County, is genuinely the site of the JOSEPH PRIESTLEY HOUSE, the American home and laboratory of the celebrated English scientist and theologian who discovered oxygen; Priestley (1733-1804) made his landmark discovery in England on August 1, 1774, when he obtained a colorless gas by heating red mercuric oxide and found it made a candle burn brighter and sustained a mouse’s life – a substance later renamed “oxygen” by French chemist Antoine Lavoisier, who built an entirely new system of chemistry around Priestley’s discovery; beyond oxygen, Priestley is credited with isolating nine other gases including carbon monoxide, nitrous oxide, and ammonia, discovering the carbon cycle, inventing carbonated water and the rubber eraser, and producing early influential writings on electricity and grammar; a Fellow of the Royal Society (1766) and recipient of its prestigious Copley Medal (1772), Priestley counted Benjamin Franklin, Thomas Jefferson, and John Adams among his close friends; his outspoken support for the American and French Revolutions, along with his unorthodox religious views as a founder of the Unitarian movement in England, made him so unpopular at home that a mob burned his house in Birmingham during the 1791 Priestley Riots, forcing him and his family to flee first to London and then, in 1794, to the United States entirely; he settled in Northumberland, Pennsylvania – where one of his sons had already relocated – and spent the final decade of his life there continuing his scientific work (including isolating carbon monoxide) and writing “Letters to the Inhabitants of Northumberland” (1799); Priestley died in Northumberland in 1804, mourned by Thomas Jefferson, and is buried there; his preserved home, designed by his wife Mary (who died before she could move in), is today operated as a Pennsylvania Historic Site and was jointly designated an International Historic Chemical Landmark in 1994, alongside his former English residence, Bowood House, in a ceremony recognizing his 1774 discovery of oxygen
Notes: The Joseph Priestley House’s genuine, internationally recognized status – jointly landmarked with a British site to honor one of history’s most consequential scientific discoveries – is a remarkable piece of scientific heritage tucked into rural central Pennsylvania.
GIS & Maps
GIS & MAPS
GIS Portal: Northumberland County GIS – accessible via northumberlandcountypa.gov
Parcel Search: Northumberland County Assessment Office
Addressing/911: Coordinated through Northumberland County Department of Public Safety
Animal Services
ANIMAL SERVICES
Facility: Northumberland Humane Society – serving Northumberland County, PA (confirm current address/hours directly via northumberlandhs.com)
Notes: MULTIPLE SERIOUS NAMING TRAPS for this county – (1) a “Northumberland County Animal Shelter” and its support group “Friends of Northumberland County Animal Shelter (FNCAS)” that appear prominently in search results are actually located in Heathsville/Burgess, VIRGINIA – a completely different Northumberland County; (2) a “Northumberland Humane Society” in Port Hope, Ontario, Canada, is also unrelated. Residents should call ahead and confirm any shelter is genuinely located within Northumberland County, Pennsylvania before relying on it. The Pennsylvania SPCA (PSPCA) also lists Northumberland County among the counties it serves.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Environmental Complaints: PA Department of Environmental Protection (DEP) – dep.pa.gov
Notes: Contact your specific municipality directly for current refuse collection and recycling program details.
NOTES
Northumberland County is genuinely home to the Joseph Priestley House, the preserved final home of the scientist who discovered oxygen – an internationally landmarked site of major scientific significance. All contact information above was sourced from official county, city, library, and shelter pages as of this writing; phone numbers and hours should be reconfirmed directly with the relevant office before a visit.
About Northumberland County
Northumberland County is central Pennsylvania’s Susquehanna River county and the 622nd most populous in the United States, covering 459 square miles at the confluence of the West Branch and North Branch of the Susquehanna River.
Sunbury (the county seat, population ~9,000) is one of central Pennsylvania’s most historically significant communities. Fort Augusta – a major British colonial fort built in 1756 at the Susquehanna confluence – was one of the most important fortifications in colonial Pennsylvania and is commemorated by a museum and replica blockhouse. The Joseph Priestley House in Northumberland (adjacent to Sunbury) preserves the home of Joseph Priestley – the British chemist who discovered oxygen in 1774 and later emigrated to Pennsylvania, where he spent his final years. Priestley’s home is a National Historic Landmark.
Sunbury also claims the distinction of being the site of the first three-wire Edison electrical system demonstration (1883), when Thomas Edison powered the downtown with his new electrical distribution system – an early milestone in the electrification of America.
Shamokin (population ~7,000) in the county’s eastern section reflects the anthracite coal heritage – a former coal mining city whose economy has struggled since the industry’s decline, with a coal waste “burning mountain” (underground coal fire) that has smoldered since 1962 visible in smoke above the city.
Milton (population ~6,500) anchors the county’s western communities on the West Branch of the Susquehanna.
All Services
Browse every category and topic available for this county.
Northumberland County uses a base year assessment with the CLR. File with the Northumberland County Board of Assessment Appeals at 399 S. 5th Street, Sunbury, PA 17801, phone 570-988-4116. Deadline: August 1. PA inheritance tax:0% to spouses, 4.5% to direct descendants, 12% to siblings, 15% to all others.
OWNWELL CTA: Northumberland County Board of Assessment Appeals: August 1. Sunbury and Milton stable markets along Susquehanna. PA inheritance tax 4.5% to descendants. Ownwell manages the appeal with no upfront cost.
Recommended
Northumberland County Board of Assessment Appeals: August 1. Sunbury and Milton stable markets along Susquehanna. PA inheritance tax 4.5% to descendants. Ownwell manages the appeal with no upfront cost.
Courts & Legal
Courts & Legal
Orphans’ Court (Probate): The Northumberland County Orphans’ Court and Register of Wills at 201 Market Street, Sunbury, PA 17801, phone 570-988-4126, handle wills, estate administration, and guardianships. Recorder of Deeds at same address maintains real property records. Land records searchable online.
Senior Services
The Northumberland County Area Agency on Aging at 399 S. 5th Street, Sunbury, PA 17801, phone 570-988-4178, serves the county’s senior population. Geisinger-Shamokin Area Community Hospital and Evangelical Community Hospital (adjacent Snyder County) provide healthcare access.
Recommended
Assisted living, memory care, and independent living across Northumberland County - from Sunbury and Shamokin to Milton, Kulpmont, and the Susquehanna River communities.
Genealogy
County-level record sources
Northumberland County Register & Recorder, Sunbury (probate/estate case files – see Probate section above).
Local societies
No dedicated Northumberland County genealogical society was confirmed in available directories.
Probate & Estate
Losing someone and having to deal with courts and paperwork at the same time is hard. This section won’t make that easier, but it should tell you what to expect, what it costs, and where to go – so at least you’re not walking in blind.
Where to go
Register of Wills, Northumberland County Northumberland County Courthouse, 201 Market Street, Sunbury, PA 17801 (570) 988-4310 Northumberland County is in central Pennsylvania, seated in Sunbury.
Step 1: figure out which path applies
Pennsylvania has NOT adopted the Uniform Probate Code. Probate runs through its own statute, the Probate, Estates and Fiduciaries (PEF) Code, Title 20 of the Pennsylvania Consolidated Statutes. Probate begins at the Register of Wills – an elected county official – in the county where the decedent lived. Routine, uncontested probate happens entirely at the Register of Wills; only disputes escalate to the Orphans’ Court Division of the Court of Common Pleas.
Small Estate Petition (20 Pa.C.S. § 3102) – available when the estate’s personal property (excluding real estate) totals $50,000 or less. This lets an interested party petition the Orphans’ Court directly for approval of a proposed distribution, skipping the need to formally open a full probate estate. Real property is never covered by this simplified process.
Formal Probate – required for estates exceeding $50,000 in personal property, or for any estate involving real property that needs to pass through probate. The Register of Wills validates the will (if any) and issues Letters Testamentary or Letters of Administration.
Step 2: filing for administration
The personal representative files with the Register of Wills in Northumberland County, along with the original will if one exists.
The Register of Wills reviews and, if in order, issues Letters Testamentary or Letters of Administration.
The personal representative gathers assets, notifies heirs and known creditors, and begins settling the estate.
Pennsylvania has a one-year creditor period running from the date of death, not from any published notice.
A Pennsylvania Inheritance Tax Return (REV-1500) must be filed with the Register of Wills, regardless of estate size.
Once debts, taxes, and expenses are settled, remaining assets are distributed according to the will or Pennsylvania’s intestacy laws, and the estate is closed.
What it costs
Filing fees vary; check with Northumberland County directly for current fees.
Pennsylvania has NO separate state estate tax, but its INHERITANCE TAX applies to virtually every estate: 0% to a surviving spouse (and to a parent inheriting from a child 21 or younger), 4.5% to children and other lineal descendants, 12% to siblings, and 15% to everyone else. No dollar exemption.
A 5% early-payment discount applies if paid within 3 months of death; the return and payment are otherwise due within 9 months.
Probate filings, estate administration, and guardianship matters are handled by the following office(s):
REGISTER OF WILLS
201 West Front St, Sunbury, PA 17801
(570) 988-4143
Public Safety & Arrests
Arrest records, inmate search, and law enforcement services are handled by the following office(s):
SHERIFF
201 West Front St, Sunbury, PA 17801
(570) 988-4147
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
BOARD OF ELECTIONS
201 West Front St, Sunbury, PA 17801
(570) 988-4109
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Human Services
399 South 5th St, Sunbury, PA 17801
(570) 988-4180
Assistance Office (DHS)
435 South Center St, Shamokin, PA 17872
(570) 644-2600
Public Health Information
PUBLIC HEALTH
Office: Northumberland County Public Health / PA Department of Health regional office – Sunbury, PA
Services: Immunizations, WIC, environmental health, vital records
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