Yorktown ZIP Code Coverage
Yorktown is a Town in Westchester County with five documented postal and hamlet identities. A 2024 Yorktown community-demographics presentation supplies the coverage set: Amawalk, Jefferson Valley, Mohegan Lake, Shrub Oak, and Yorktown Heights. The presentation uses ACS 2017 to 2021 source data and is useful for identifying the postal labels seen in Yorktown local records. It is not a USPS legal-boundary map. A delivery ZIP should be confirmed for the exact Yorktown address, while a Yorktown parcel or Town record should retain its street address and SBL.
| ZIP | Areas covered | Post office / identity | Notes |
|---|---|---|---|
| 10501 | Amawalk | Amawalk mailing identity | Small Yorktown area in the 2024 table; use street and SBL, not ZIP alone. |
| 10535 | Jefferson Valley | Jefferson Valley mailing identity | A Yorktown project at 800 East Main Street uses this label; the Town table lists 136 households. |
| 10547 | Mohegan Lake | Mohegan Lake mailing identity | Yorktown's Tom Diana Park at Granite Knolls uses this identity; the Town table lists 2,682 households. |
| 10588 | Shrub Oak | Shrub Oak mailing identity | Yorktown's Hart Library uses this postal identity; the Town table lists 1,248 households. |
| 10598 | Yorktown Heights | Yorktown Heights mailing identity | Yorktown Town Hall and Court use this identity; the Town table lists 10,362 households. |
The Yorktown ZIP code directory therefore covers five Yorktown mailing identities, not five separate municipalities. Preserve the Town of Yorktown field and the Yorktown postal city field as different data points whenever a record has both.
Yorktown Amawalk ZIP 10501
Amawalk 10501 is the first documented Yorktown postal identity in the Town's five-area table. The research does not establish a complete Yorktown street list, a post-office boundary, or a unique ZIP status for this area. That absence matters. A result labeled Amawalk can be a useful alternate search term for a mail, obituary, or historical query, but it does not settle the Yorktown parcel's municipal or legal description.
For an Amawalk address, confirm delivery with USPS, then use the Yorktown selection in the County parcel viewer to identify the exact parcel and SBL. Do not add neighboring ZIPs merely because an address sounds close to Amawalk. The documented Town coverage set remains limited to the five postal identities the Town table identifies.
Yorktown Jefferson Valley ZIP
Jefferson Valley uses 10535 in the Town presentation. Yorktown planning material provides a concrete postal example: 800 East Main Street is labeled Jefferson Valley 10535. The Yorktown planning narrative also places a commercial center near East Main Street, Route 6, and Hill Boulevard. Those place references can help identify which local search terms to try. They do not make a postal label a Town-line, parcel-line, or resident record.
A property question here should proceed from the exact street address to the Yorktown parcel record, then to a Yorktown Assessor request or County Clerk instrument for the Yorktown parcel when needed. Keep the word Jefferson Valley with the address in notes. It can help recover a local filing or historical source that is not indexed under Yorktown Heights.
Yorktown Mohegan Lake ZIP
Mohegan Lake 10547 is another documented Yorktown postal identity. The Town of Yorktown identifies Tom Diana Park at Granite Knolls as 2975 Stony Street, Mohegan Lake 10547, and Yorktown Planning material gives a Mohegan Lake label for a 2025 East Main Street project. Those official examples show why a Yorktown address search should preserve the postal hamlet instead of normalizing every result to Yorktown Heights.
The Yorktown street-range and polling-place PDF is an older 2014 document, not a current postal directory. Its Horne Circle entries appear with 10535, 10547, and 10588. That is a useful warning against using a ZIP alone to match a whole street. Confirm the exact Yorktown delivery address, then use an SBL or legal description for record work.
Yorktown Shrub Oak ZIP
Shrub Oak uses 10588 in the Yorktown postal coverage table. The John C. Hart Memorial Library in Yorktown, at 1130 East Main Street, carries the Shrub Oak postal identity. Its Hyatt Local History Collection for Yorktown has books, pamphlets, maps, photos, indexes, and newspapers focused on Shrub Oak. For a historical Yorktown name or address, search Shrub Oak as well as Yorktown and Yorktown Heights, then record which label appears in the source.
Library evidence may provide an article, obituary lead, or map context. It is not a current address register. If the issue concerns a parcel, route it back through the County viewer and Yorktown Assessor. If it concerns an earlier land record, the legal description and County Archives trail are more reliable than a postal label.
Note: A successful search under Shrub Oak shows a useful local index term, not a different municipal jurisdiction or a complete list of residents.
Yorktown Heights ZIP
Yorktown Heights 10598 is the postal identity used by Town Hall and the Justice Court, and the Town table associates it with most administrative offices. That makes it a common mailing label in municipal records. It is not shorthand for the whole Town. A Town facility can have a Yorktown Heights mailing address while another Town resource uses Shrub Oak or Mohegan Lake.
Start a failed address search again with the documented hamlet name before assuming the record is missing. Then check the Westchester County Municipal Tax Parcel Viewer with municipality set to Yorktown. The viewer accepts an address, print key, or available owner name. It does not advertise a ZIP filter, so a Yorktown Heights ZIP cannot replace a street-level parcel query.
Yorktown ZIP Code Workflow
A ZIP can improve an address search when it is treated as one field among several. Use delivery verification for the full street address first. Then hand off to the tool that matches the question: the County parcel viewer for map and print-key context, the Assessor for property-card or ownership confirmation, and the County Clerk for a recorded legal description. The ZIP is a mail-routing label, not an owner or resident attribute.
- Check the exact delivery address with USPS ZIP Lookup. Record the five-digit ZIP and postal hamlet without assuming either is a Town boundary.
- Choose Yorktown in the County parcel viewer and search the street address or print key. Save the SBL or parcel context returned.
- Use the Town address and 2014 street-range documents only as historical or contextual aids. They are not current postal-boundary authority.
- For local-history work, retry library, obituary, newspaper, and web searches using the matching hamlet identity as well as Yorktown.
- For title or parcel research, carry the SBL and legal description to the Assessor or County Clerk rather than relying on the mailing ZIP.
Once a ZIP has narrowed the address, the Yorktown street directory provides the parcel-first sequence for a particular roadway. It remains important to distinguish owners, applicants, and historical parties from current occupants.
Yorktown ZIP Code Search Fields
The research did not locate a ZIP-wide Yorktown resident portal. The County viewer accepts municipality, address, print key, and owner name where available, but its public landing page does not advertise a ZIP filter. New York's voter lookup includes a ZIP field, yet it is an individual registration tool that requires several identifying fields. It is not a way to browse all Yorktown registrants within one ZIP.
| NYS voter field | Type | Required | Recorded boundary |
|---|---|---|---|
| County | Dropdown | Yes | Select Westchester for Yorktown. |
| Last Name | Text | Yes | Enter the name as registered. |
| First Name | Text | Yes | Enter the name as registered. |
| Date of Birth | Date or text | Yes | The form shows MM/DD/YYYY. |
| ZIP Code | Text | Yes | Use the five-digit mailing ZIP; browser cookies and JavaScript are required. |
The NYS voter lookup may help an identified registrant check individual information. Voter-registration data requested from the Board of Elections is limited by Election Law section 3-103(5) to an elections purpose, and confidential registrations are separate under section 5-508. A ZIP field does not remove those limits.
Yorktown ZIP Code Boundaries
Yorktown ZIP code boundaries do not equal Town limits, hamlet limits, voter districts, or parcel lines. The Town's address and ZIP material shows both Yorktown Heights 10598 and Jefferson Valley 10535 municipal labels. Its 2014 election table places a ZIP column beside street ranges, but the Horne Circle example with three ZIPs shows why that dated document cannot act as a current postal map. The careful practice is to keep postal delivery, Town jurisdiction, parcel geography, and the legal description in separate fields.
- ZIP code
- A postal-routing label for delivery. In Yorktown, it may be Amawalk, Jefferson Valley, Mohegan Lake, Shrub Oak, or Yorktown Heights without changing Town jurisdiction.
- ZIP+4
- An added delivery detail after the five-digit ZIP. It is useful for mail routing, not a parcel or ownership identifier.
- PO-box ZIP
- A ZIP used for post-office boxes rather than a broad delivery area. Research did not verify a Yorktown PO-box-only ZIP, so none is assigned here.
- Unique ZIP
- A ZIP dedicated to one organization or address. Research did not verify one in Yorktown.
- Carrier route
- A postal delivery grouping. It is not a municipal boundary, ownership record, or resident list.
For a Town request, give the street address and SBL. For a deed, use the legal description and County Clerk record. For a delivery question, use USPS. The Yorktown Town Clerk's FOIL procedure is the documented fallback for a narrow municipal record request when there is no public search field.
Yorktown's five postal identities are practical retrieval terms, not a boundary system. A library clipping may use Shrub Oak, while a Town record uses Yorktown Heights and a parcel screen shows the same Town jurisdiction. Record both labels when they appear. That small habit makes a later search easier to repeat and helps prevent a postal result from being mistaken for title evidence. Where the street, ZIP, and parcel record disagree, the custodian and record type decide which identifier controls the question at hand.