Founding year: Wikidata. First post office: 1834.The full story ↓
History grade
What drives Hallam’s History grade
On its age, its old homes and the National Register, Hallam is more historic than 89% of U.S. towns, #201 of 1,035 in Pennsylvania. All 3 inputs are above most U.S. towns; its age ranks highest and its National Register listings lowest.
A
HistoryA character grade: shown, never part of Hallam’s overall grade.
Pennsylvania towns list about as much on the Register as the country (a typical Pennsylvania town has 2.1 per 10,000 residents, the U.S. 2.4), so Hallam’s 3.6 sits near the middle of its state (63% of Pennsylvania towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
NoteThe founding year comes from Wikidata alone; no second source gives 1770.
How sure. Graded on any two of the three inputs instead, the letter would range from B+ to A. The pre-1940 share is a Census survey estimate (±9.3 points).
Founding year: Wikidata (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Hallam’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Before 1736, all parts of Pennsylvania west of the Susquehanna River, including present-day Hallam Borough and the surrounding Hellam Township, were land of the Iroquois.
In October 1736, the Proprietors of Pennsylvania received from the Five Nations deeds for the Susquehanna lands south of the Blue Mountains, including the borough and township.
Passages that mention Hallam, cut from the printed page as they were published.
History of York County Pennsylvania From the Earliest Time to the Present1886 · page 600Read the page →
Read the text
portion of Lancaster County west of the Susquehanna into townships." Under the provisions of this act, the same year of its passage, the Township of Hallam, which originally included most of York County and Pennsborongh Township, which originally embraced all of Cumberland County, were erected, without any surveyed boundaries.
Text read by machine from the scan; it may contain errors.
portion of Lancaster County west of the Susquehanna into townships." Under the provisions of this act, the same year of its passage, the Township of Hallam, which originally included most of York County and Pennsborough Township, which originally embraced all of Cumberland County, were erected, without any surveyed boundaries.
Text read by machine from the scan; it may contain errors.
History of York County Pennsylvania From the Earliest Time to the Present1886 · page 724Read the page →
Read the text
the same to Shrewsbury Township (now Springfield and Hopewell), thence with the same township and the township of Chanceford to the Susquehanna, and up the same to Hallam Township, thence along the middle of that ridge of hills to Peter Petejrman's plantation and place of beginning; which last described township is to be called by the name of Windsor.
Text read by machine from the scan; it may contain errors.
History of York County, Pennsylvania1886 · page 724Read the page →
Read the text
the same to Shrewsbury Township (now Springfield and Hopewell), thence with the same township and tlie township of Chancef ord to the Susquehanna, and up the same to Hallam Township, thence along the middle of that ridge of hills to Peter Peterman's plantation and place of beginning; which last described township is to be called by the name of Windsor.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
By decade
Hallam, decade by decade
One decade in the archive so far: the 1990s. Scroll each row; tap a photo for its story.
In 1770, according to Wikidata. Hallam’s post office opened in 1834, and the census of 1910 counted 472 people here.
How does Hallam rank for history?
Hallam is more historic than 89% of U.S. towns, #201 of 1,035 in Pennsylvania. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
What is on the National Register in Hallam?
One place: the Martin Schultz House (listed 1993).
How old are the homes in Hallam?
23% of Hallam’s homes were built before 1940 (Census estimate, ±9.3 points), against a typical 18% for a Pennsylvania town; the median home was built in 1992.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikimedia Commons (18), the National Register of Historic Places (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.