Leander Texas ZIP Codes
Leander holds 3 ZIP codes, spread across 2 counties.
Every ZIP code in Leander
| ZIP code | County |
|---|---|
| 78641 | Williamson County |
| 78645 | Travis County |
| 78646 | Williamson County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Leander codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Leander. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Leander ZIP code begins 786. Those first three digits identify the sectional center facility that processes mail for this part of Texas. Statewide that range covers 75 ZIP codes, so Leander accounts for 4% of it.
Every Texas ZIP prefix and the region it covers →
Area codes covering Leander
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Leander occupies.
Leander Texas area codes in full →
Where Leander's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Leander
| City | Distance | ZIP codes |
|---|---|---|
| Cedar Park Texas ZIP codes | 5.1 mi | 2 ZIP codes |
| Liberty Hill Texas ZIP codes | 6.7 mi | 1 ZIP code |
| Georgetown Texas ZIP codes | 12 mi | 4 ZIP codes |
| Round Rock Texas ZIP codes | 12 mi | 6 ZIP codes |
| Bertram Texas ZIP codes | 17 mi | 1 ZIP code |
| Weir Texas ZIP codes | 18 mi | 1 ZIP code |
| Pflugerville Texas ZIP codes | 18 mi | 2 ZIP codes |
| Florence Texas ZIP codes | 19 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.