| ZIP Codes: | 15 ZIP Codes (10 Standard, 5 PO Box, 0 Unique) [See All] |
| Area Code: | 607 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:17 PM |
| Population: | 105,350 [See All] |
| FIPS: | 36109 |
| CBSA: | Ithaca, NY |
| Land Area: | 505 sq mi |
| Water Area: | 9 sq mi |
| Coordinates: | 42.4714, -76.4559 |
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105,350 residents live across 15 ZIPs covering 505 sq mi, served by 12 distinct USPS-recognized cities.
Population moved from 104,710 to 105,350 from 2014 to 2024 — a +0.6% change. 6 ZIPs gained residents, 7 lost.
The county's wealthiest ZIP 14882 (Lansing, $91,960 median) and poorest ZIP 14850 (Ithaca, $71,445) are 8.9 miles apart — a 1.3× income gap across local geography.
Median home values vary 2.1× across this county — from $167,600 in 13073 (Groton) to $353,500 in 14850 (Ithaca).
Density varies 43× across the county — from 61 people/sq mi in 14817 (Brooktondale) to 2,657 in 14853 (Ithaca).
Educational attainment ranges from 29.0% bachelor's+ in 13073 (Groton) to 70.6% in 14850 (Ithaca) — the breadth of educational profiles across the area.
Within New York, this is the #28 most populous of 62 counties and ranks #29 for median household income .
Weighted by population, the typical household earns about $74,256 across the county — reflecting what a typical resident sees, not a simple ZIP average.
58.5% of adults age 25+ hold a bachelor's degree or higher (36,271 of 61,999 reporting). The most-educated ZIPs cluster around Ithaca.
10 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this county.
2 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 14850 | Ithaca | Standard | 68,610 | $71,445 | 124.2 | 4.5% |
| 14886 | Trumansburg | Standard | 6,652 | $82,000 | 77.2 | -8.1% |
| 13073 | Groton | Standard | 6,054 | $71,452 | 57.9 | -7.1% |
| 14867 | Newfield | Standard | 5,149 | $75,507 | 67.6 | -10.3% |
| 13053 | Dryden | Standard | 4,794 | $83,021 | 34.8 | 11.9% |
| 13068 | Freeville | Standard | 4,592 | $80,043 | 53.3 | -19.4% |
| 14882 | Lansing | Standard | 4,191 | $91,960 | 46.2 | 6.4% |
| 14817 | Brooktondale | Standard | 2,479 | $77,228 | 40.4 | 15.2% |
| 14853 | Ithaca | Standard | 2,405 | — | 0.9 | -16.6% |
| 13062 | Etna | PO Box | 195 | — | 0.7 | -35.6% |
| 14881 | Slaterville Springs | Standard | 117 | $89,063 | 1.5 | -56.8% |
| 14854 | Jacksonville | PO Box | 76 | — | 0.0 | 406.7% |
| 13102 | Mc Lean | PO Box | 36 | — | 0.0 | 33.3% |
| 14851 | Ithaca | PO Box | — | — | 0.0 | — |
| 14852 | Ithaca | PO Box | — | — | 0.1 | — |