Diamond Ridge is a community in Kenai Peninsula Borough, Alaska, home to about 1,329 people across 42 square miles. It has no ZIP code of its own: it’s part of 99603.
Homes sold for a median of $310 per square foot in the three months ending August 2026, a balanced market.
Mostly Homer; part is in Diamond Ridge
Each card is that ZIP code’s whole market, including any part outside Diamond Ridge. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Diamond Ridge’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Ted Stevens Anchorage International Airport (ANC)121 miles away |
|---|---|
| Closer regional airport | Homer Airport (HOM)11 miles away |
| Nearest city of 250,000+ | Anchorage, AK131 miles away |
Straight-line distances from the center of Diamond Ridge; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Diamond Ridge had 1,330 residents in the 2020 census, down 26% since 2000.
It’s the 63rd largest of 321 towns in Alaska by population.
Kenai Peninsula Borough grew from 6,097 residents in 1960 to 58,799 in 2020.
Kenai Peninsula Borough, 1960–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 63°F in summer, and winter lows average 19°F. About 24.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Homer Ap, AK weather station (11 miles away).
15,786 jobs at 2,405 businesses in Kenai Peninsula Borough. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
200 doctors and other health care providers list an office in Diamond Ridge.
Nearest hospitals
Providers with an office here
| Primary care doctors | 22 |
|---|---|
| Specialist doctors | 21 |
| Dentists | 9 |
| Nurse practitioners and physician assistants | 33 |
| Mental health providers | 82 |
| Physical and occupational therapists | 23 |
| Optometrists | 4 |
| Chiropractors | 6 |
| Pharmacies | 5 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Public schools here are run by Kenai Peninsula Borough School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Kachemak Selo SchoolKachemak | Pre-K–12 | 30 | Public | 18.6 mi |
| Nanwalek SchoolNanwalek | Pre-K–12 | 60 | Public | 27.2 mi |
| Paul Banks ElementaryHomer | Pre-K–2 | 189 | Public | 12.3 mi |
| Port Graham SchoolPort Graham | Pre-K–12 | 29 | Public | 24.6 mi |
| Razdolna SchoolHomer | Pre-K–12 | 74 | Public | 19.7 mi |
| Voznesenka SchoolVoznesenka | Pre-K–12 | 145 | Public | 18.4 mi |
| Fireweed AcademyHomer | K–6 | 104 | Charter | 13.7 mi |
| McNeil Canyon ElementaryHomer | K–6 | 144 | Public | 14.4 mi |
| West Homer ElementaryHomer | 3–6 | 211 | Public | 13.7 mi |
| Homer Middle SchoolHomer | 7–8 | 205 | Public | 13.3 mi |
| Homer Flex SchoolHomer | 9–12 | 36 | Alternative Education | 12.6 mi |
| Homer High SchoolHomer | 9–12 | 357 | Public | 12.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Homer, Fritz Creek, Kachemak, Fox River, Nanwalek, Halibut Cove and Port Graham.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.