ZIP Code 99645 — Knik River CDP, AK Demographics & Data

ZIP code 99645 covers Knik River, AK in Matanuska-Susitna Borough with a population of about 31,494.

At a glance, the area shows median age of 36.5 versus a U.S. median of about 38.9.

It sits in telephone area code 907; U.S. House district AK-00; the ANCHORAGE media market.

Median household income in ZIP 99645 is about $97,069 — about 29% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 8.7%; unemployment rate near 5.7%; 31.1% of adults with a bachelor’s degree or higher (about 2.6 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Construction, and Retail trade; about 9.5% of workers reporting work-from-home (about 5.7 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $338,400 — about 3% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,180 (about even with the U.S. median rent ($1,163)), and owner-occupancy near 78.6% (about 13.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 99645 in Knik River, AK, a household would need roughly $93,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,174. That is roughly in line with the local median household income ($97,069). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate normals for Knik River CDP, AK show little to no average snow and around 18.0 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,253 for ZIP 99645 (Knik River CDP, AK) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.