Residential delivery area · Alaska
ZIP Code 99672: Sterling, AK
ZIP code 99672 is in Sterling, Alaska, entirely in Kenai Peninsula Borough (Census 2020 ZIP-county file). About 4,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $100,642 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sterling · its only residential ZIP
- County
- Kenai Peninsula Borough
- Census places
- Sterling census-designated place
- House district
- AK at large 119th Congress
- State
- Alaska
- Time zone
- Alaska
- Land area
- 63.3 sq mi · 65 people per sq mi
Where is ZIP code 99672?
99672 centers on 60.570°, -150.761° and covers 63.3 square miles of land plus 1.4 of water. It borders 3 ZIP codes: 99669, 99611, 99572.
The map draws ZIP code areas only. For the streets inside 99672, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 99672 compare with the rest of Kenai Peninsula Borough?
| Measure | 99672 | In Kenai Peninsula Borough | In AK |
|---|---|---|---|
| People (ACS 2020-2024) | 4,091 | 5th of 15 | 36th of 245 |
| Median household income | $101k | not ranked | not ranked |
| Median home value | $316k | 4th of 7 | 29th of 57 |
99672's median household income is not ranked: its 90% margin of error (±$27,377) is more than a quarter of the figure ($100,642). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 47% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 99672?
The 2020 Census counted 3,503 people in 99672; the ACS, which samples households over 2020-2024, estimates 4,091. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 4,091±644 (90% margin)
- 2020 Census count
- 3,503
- Households
- 1,817
- Median age
- 45.1
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 99672?
Of the 4,091 people the ACS estimates in 99672, 20.9% are under 18 and 24.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.5%).
- Under 1820.9%
- 18 to 6454.7%
- 65 and older24.4%
- White, not Hispanic91.5%
- Other or two or more7.7%
- Black, not Hispanic0.4%
- Hispanic or Latino0.4%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 99672 earn?
Median household income is $100,642 (ACS 2020-2024).
- Median household income
- $100,642±$27,377
- Income per person
- $53,749
- Below the poverty line
- 3.2%
- Unemployed (of the labor force)
- 5.0%
- Adults 25+ with a bachelor's degree
- 25.8%
- Adjusted gross income per tax return, 2022
- $91,1541,780 returns; wages 53% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 99672?
FHFA's house price index for 99672, built from repeat sales and appraisals of the same homes, rose 67% from 2015 to 2025 and rose 61% from 2020 to 2025, and moved +13.2% in 2025.
- Median home value (owners' estimate)
- $316,400
- Median gross rent
- $1,171
- Homes owned by their occupants
- 86.9%
- Housing units
- 2,653
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 99672?
86 business establishments had a location in this ZIP code in 2023, 22 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction30
- Other services (except public administration)9
- Manufacturing7
- Retail trade6
- Professional, scientific, and technical services6
- Health care and social assistance6
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 99672?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 99669 | Soldotna | 15,395 | $81k | 16.9 mi |
| 99611 | Kenai | 16,510 | $80k | 18.4 mi |
| 99572 | Cooper Landing | 241 | $144k | 27.6 mi |
| 99568 | Clam Gulch | 465 | $85k | 21.3 mi (near) |
| 99610 | Kasilof | 2,222 | $56k | 26.5 mi (near) |
| 99631 | Moose Pass | 222 | – | 38.2 mi (near) |
| 99682 | Tyonek | 295 | $66k | 45.2 mi (near) |
| 99639 | Ninilchik | 1,175 | $47k | 47.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.