Matanuska-Susitna Borough · Alaska
ZIP code 99645
- Population
- 31,494
- Median income
- $97,069
- Median home
- $338,400
- Sales tax
- 0%
ZCTA residents
Household, past 12 months
Owner-occupied value
Alaska state rate
Quick answer
ZIP 99645 sits in Matanuska-Susitna Borough, Alaska and is home to 31,494 people. Median household income is $97,069, the median home is worth $338,400 and median gross rent is $1,309. 78.6% of households own their home, and purchases are taxed at 0% (Alaska state rate).
- County
- Matanuska-Susitna Borough
- State
- Alaska (AK)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 02170
245 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 99645
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 31,494ZIP 99645 residents
- Median household income
- $97,069Past 12 months, inflation adjusted
- Median home value
- $338,400Owner-occupied units
- Median gross rent
- $1,309Rent plus utilities, monthly
- Median age
- 36.5 yrsAll residents
- Homeownership rate
- 78.6%Owner-occupied households
Sales tax in 99645
What a purchase inside this ZIP costs at checkout.
Alaska levies 0% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.
Affordability in this ZIP
Derived from the Census medians above — indicative, not an offer.
A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.
How 99645 compares
ZIP 99645 against the median ZIP in Matanuska-Susitna Borough and across Alaska.
| Measure | ZIP 99645 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $97,069 | $67,907 | $63,203 | +54% |
| Median home value | $338,400 | $247,000 | $170,800 | +98% |
| Median gross rent | $1,309 | $1,216 | $1,040 | +26% |
| Population | 31,494 | 1,754 | 458 | +6776% |
Medians are computed across the 11 ZIP areas in Matanuska-Susitna Borough and the 245 ZIP areas in Alaska.
Statewide rank
Where this ZIP places among all 245 Alaska ZIP areas.
- Income
- #31
- Home value
- #26
- Population
- #5
richer than 85% of 210 state ZIPs
above 86% of 185 state ZIPs
larger than 98% of 245 state ZIPs
Comparable ZIP codes
Alaska ZIP areas with almost the same household income.
| ZIP | County | Income | Home value | Rent |
|---|---|---|---|---|
| 99705 | Fairbanks North Star Borough | $96,966 | $290,100 | $1,496 |
| 99686 | Chugach Census Area | $97,212 | $310,900 | $1,463 |
| 99649 | Lake and Peninsula Borough | $98,438 | $154,200 | $1,000 |
| 99505 | Anchorage Municipality | $98,500 | — | $2,504 |
| 99660 | Aleutians West Census Area | $98,750 | $107,100 | $967 |
| 99517 | Anchorage Municipality | $99,307 | $365,300 | $1,364 |
Nearby ZIP codes
Other ZIP codes filed under Matanuska-Susitna Borough.
ZIP 99645 questions
Common questions about this ZIP code.
- Where is ZIP code 99645?
- ZIP 99645 lies mostly in Matanuska-Susitna Borough, Alaska. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
- What sales tax do I pay in 99645?
- Alaska charges 0% statewide, plus any county, city or district rate that applies locally.
- Is 99645 expensive to live in?
- Median rent runs $1,309 a month, about 16% of median household income, and the median home is worth $338,400 — +98% against the typical Alaska ZIP.
- Is a ZCTA the same as a postal ZIP code?
- Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.
Keep going
Related pages for this area.
Sources & transparency
- US Census Bureau, ACS 2019-2023 5-year estimates — 2019-2023 ACS 5-year — population, income, housing
- Census 2020 ZCTA-to-county relationship file — County assignment by largest land-area overlap
- Alaska Department of Commerce (Alaska Municipal League rate tables) — Sales tax rates and local add-ons
Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.