ZIP guide — public records, sourced

17821: Riverside, PA

The public records behind ZIP 17821 — the registry count for the ZIP itself, and the FBI-reported crime record for Montour County, its county. Every figure sourced and dated. For a specific home, run the free preview: the flood determination and the full record check happen at the address, live.

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26
Registrants in ZIP 17821
1 in 722
Residents per registrant
115
Montour County offenses reported, 2024
6.35
Montour County crimes per 1,000 / yr

Registered sex offenders in 17821

26 registrants are listed for ZIP 17821 — a ratio of 1 per 722 residents.

County baseline — Montour County overall: 1 per 635 residents.

Counts describe density, not danger by themselves; proximity to a specific address is what matters. This page publishes the count only — never names, photos, or registrant addresses. For the address-level check, search the official registry: the Pennsylvania Megan's Law Public Website (Pennsylvania State Police), or every state at once through the federal NSOPW site.

One honest caveat: this count comes from a compilation of the state registry’s published data. Where a registry also lists work or school locations, a compilation count can read higher than a residence-only official count — the official search above is the deciding check for a specific address.

Source: City-Data compilation of Pennsylvania state registry data — count as of 2026-11-04. Compilation pulled 2026-11-04.

Compilation page for this ZIP: https://www.city-data.com/soz/soz-17821.html.

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Reported crime in Montour County — FBI 2024

FBI crime data is collected by law-enforcement agency, not by ZIP — so this is the record for Montour County, the county ZIP 17821 belongs to, labeled at county grain. ZIP 17821 spans 3 counties. Montour County is its primary county — 70% of the ZIP’s land area (Census Bureau 2020 ZCTA-to-county file), so the county figures below are Montour County’s.

Agencies in Montour County reported 115 offenses to the FBI in 2024 — 28 violent and 87 property — a reported-crime rate of 6.35 per 1,000 residents (violent 154.6 and property 480.3 per 100,000).

Offense (2024, reported)Count
Murder0
Rape4
Robbery3
Aggravated assault21
Burglary10
Larceny-theft72
Motor vehicle theft5
Arson2

Coverage: 4 of 4 law-enforcement agencies assigned to this county reported at least one month of 2024 offense data to the FBI; 4 reported all 12 months. Counts are reported offenses only (FBI Return A / Arson master files), assigned whole to each agency's primary county; they are not adjusted for non-reporting agencies.

Source: FBI Crime Data Explorer (CDE) — UCR master files: Return A (Offenses Known and Clearances by Arrest) and Arson, data year 2024 — pulled 2026-11-04. These are offenses reported to law enforcement, not convictions, and not a verdict on any street or address.

Montour County and Pennsylvania context

Montour County is the records county for ZIP 17821. The county seat is Danville. Its 2024 Census Bureau population estimate is 18,115. The files that decide a purchase — assessor, recorder, permits, flood — live at the county and state level:

Flood risk is decided at the structure, not the ZIP — two houses on the same street can sit in different FEMA zones. The free preview at the top of this page runs the official FEMA determination at the exact address, live.

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Sources for this page

  • Sex-offender registry: City-Data compilation of Pennsylvania state registry data (count as of 2026-11-04); official search: Pennsylvania Megan's Law Public Website, Pennsylvania State Police.
  • Crime: FBI Crime Data Explorer (CDE) UCR master files — Return A and Arson, data year 2024, pulled 2026-11-04; offenses assigned to each reporting agency’s primary county.
  • ZIP-to-county: U.S. Census Bureau, 2020 Census ZCTA5-to-County relationship file, pulled 2026-11-04; primary county = largest share of the ZCTA’s land area.
  • County context: population — U.S. Census Bureau 2024 Population Estimates Program; county seat — Wikidata (CC0), checked 2026-11-04.

Figures are shown as published by their sources on the dates noted and are refreshed as the underlying data updates. This page is research, not legal or financial advice.