The boundary of ZIP Code 99604, in Kusilvak, Alaska.
The basics
Total Population
Total number of people living here.
Census ACS B01003 · Census ACS 2020–2024 (5-year)
How it is calculated →How it is calculated
The American Community Survey's 5-year estimate of the number of people living in the area (ACS B01003), read at each geographic level directly rather than summed up from smaller areas. Served as-is with no further calculation; areas with zero recorded population are dropped from the data entirely.
903
Median Age
Middle age of the population.
Census ACS B01002 · Census ACS 2020–2024 (5-year)
How it is calculated →How it is calculated
The American Community Survey's 5-year median age of all residents in the area (ACS table B01002), read straight from the ACS for that geography with no aggregation or derived arithmetic. Census sentinel codes for unavailable, not-applicable and suppressed values are set to null, and areas with no population are dropped.
27.8
Population Density
People per square mile (population ÷ land area).
Census ACS + TIGER · Census ACS 2020–2024 (5-year)
How it is calculated →How it is calculated
Total population divided by the area's land area in square miles, using the land area recorded on the Census TIGER boundary file (which excludes water).
120.44
Cost of living & affordability
Median Rent
Median monthly gross rent.
Census ACS B25064 · Census ACS 2020–2024 (5-year)
How it is calculated →How it is calculated
Median monthly gross rent, taken directly from ACS B25064 with no further calculation. Values at the top of the distribution arrive as the ACS top-code 3,501 rather than a true median, and that code is served as reported rather than blanked out.
$725
Home prices & appreciation
Home Price Growth, Past Five Years
Five-year cumulative FHFA Home Price Index change.
Catalog name: HPI Growth 5yr %
FHFA HPI through 2025
How it is calculated →How it is calculated
This area's FHFA house price index in 2025 minus its 2020 level, divided by the 2020 level, times 100.
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The FHFA repeat-sales index, which tracks resales of the same homes over time, does not cover this area.
Home Price Growth, Past Year
One-year FHFA Home Price Index change.
Catalog name: Appreciation 1yr %
FHFA HPI through 2025
How it is calculated →How it is calculated
FHFA's published one-year percent change in the House Price Index for this area, taken as-is from FHFA's annual HPI file for the matching geography (tract, ZIP, county or state) rather than recomputed here. Juniper reads the most recent annual data year available in the pipeline.
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Data unavailable
Pandemic Price Run-Up
Trough-to-peak home price gain over the pandemic, 2019–20 to 2022–23.
Catalog name: Pandemic Gain %
FHFA HPI, 2019–2020 to 2022–2023
How it is calculated →How it is calculated
The highest FHFA house price index reading in 2022-2023 minus the lowest reading in 2019-2020, divided by that 2019-2020 low, times 100.
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Data unavailable
2008 Crash: Peak-to-Trough Drop
Peak-to-trough home price decline, 2005–07 to 2009–12. Higher is a bigger drop; negative means the market rose across the window instead of falling.
Catalog name: Recession Drop %
FHFA HPI, 2005–2007 to 2009–2012
How it is calculated →How it is calculated
The highest FHFA house price index reading in 2005-2007 minus the lowest reading in 2009-2012, divided by that 2005-2007 peak, times 100. A negative value means the 2009-2012 low was still above the pre-crash high.
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Data unavailable
Flood & disaster risk
Coastal Flood Loss per $1,000
Expected annual loss to buildings from coastal flooding (storm surge and coastal inundation), per $1K of building value. Does not include riverine flooding, which FEMA models separately.
Catalog name: EAL Flood/Coastal per $1K
FEMA NRI · FEMA National Risk Index 2025
How it is calculated →How it is calculated
FEMA National Risk Index modelled expected annual loss from coastal flooding, in dollars, divided by the same area's FEMA building-value exposure expressed in thousands of dollars; an area with no reported building value is left blank rather than shown as zero. This covers coastal flooding only, not inland or riverine flooding, and county figures are population-weighted averages of their tract values while state figures are population-weighted averages of their county values, counting a place where FEMA models no coastal flood loss as zero rather than as missing.
$0
The full report
Six pillars — each with percentile benchmarks, 16-year trends, and per-metric detail.
People
Work & Money
Housing
Amenities
Climate
Environment & Risk
ZIP Code 99604: frequently asked questions
- Is ZIP Code 99604 expensive to live in?
- Homes in ZIP Code 99604 cost about 3.02× the median household income, near the U.S. ZIP codes median.
- What is the average rent in ZIP Code 99604?
- The median gross rent in ZIP Code 99604 is $725 a month, lower than 86% of U.S. ZIP codes.
- How many people live in ZIP Code 99604?
- ZIP Code 99604 has a population of 903, about 120.44 people per square mile, per the U.S. Census American Community Survey. The median age is 27.8.
- Is ZIP Code 99604 at risk of flooding or natural disasters?
- ZIP Code 99604's FEMA National Risk Index score is 99.8 (higher than 99% of U.S. ZIP codes). Its greatest modeled natural hazard is wildfire. Modeled coastal-flood loss is negligible.
Sources: U.S. Census ACS, FEMA National Risk Index, FHFA House Price Index, OpenStreetMap contributors (ODbL), EPA. Explore the map →