ZIP 83854 vs ZIP 99019

Source:

Post Falls, ID — Liberty Lake, WA

This side-by-side compares ZIP 83854 (Post Falls, ID) and ZIP 99019 (Liberty Lake, WA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 83854 has a population of 37,245 at 192 people per square mile, while ZIP 99019 has 9,502 at 168 per square mile. That difference in population size and density alone reshapes how every other metric should be interpreted — a higher-income ZIP with 1,200 residents behaves very differently from one with 45,000.

On income and education, ZIP 83854 reports a median household income of $82,742 against $120,053 in ZIP 99019, with per-capita income of $35,865 vs $57,589. The share of adults holding a bachelor's degree or higher is 25.3% in 83854 and 49.7% in 99019. Poverty rate reads 11.2% vs 4.5%, and unemployment 3.8% vs 2.2% — these four fields alone drive most of the difference in the scorecard grades you will see for each ZIP.

Housing separates these two ZIPs further: median home value sits at $489,800 in 83854 versus $617,800 in 99019, with median rent of $1,495 and $1,893 per month respectively. Homeownership rate is 67.9% vs 68.1%. When reading the comparison table below, focus on paired metrics rather than single winners — a ZIP with lower home values and lower income is not strictly "worse" if rent-to-income ratios and commute times land in the same zone. Every value is pulled from the exact same ACS table so the two columns are genuinely comparable.

Compare different ZIP codes:

vs
Metric
83854
Post Falls, ID
99019
Liberty Lake, WA
Population 37,245 9,502
Median Household Income $82,742 $120,053
Per Capita Income $35,865 $57,589
Median Age 36.9 39.7
Bachelor's Degree or Higher 25.3% 49.7%
Poverty Rate 11.2% 4.5%
Unemployment Rate 3.8% 2.2%
Median Home Value $489,800 $617,800
Median Rent (monthly) $1,495 $1,893
Homeownership Rate 67.9% 68.1%
Population Density (per sq mi) 192 168

Values highlighted in green indicate the better metric where applicable. Source: U.S. Census Bureau ACS 2023.

Full Profile
83854
Post Falls, ID
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Full Profile
99019
Liberty Lake, WA
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What are common questions about this comparison?

How do ZIP codes 83854 and 99019 compare?
ZIP 83854 (Post Falls, ID) has a population of 37,245 and a median household income of $82,742. ZIP 99019 (Liberty Lake, WA) has a population of 9,502 and a median household income of $120,053.
Which ZIP code has higher income, 83854 or 99019?
ZIP 99019 (Liberty Lake, WA) has a higher median household income of $120,053 compared to $82,742 for ZIP 83854.
How do I compare two ZIP codes on PlainZIP?
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All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Data sourced from official U.S. Census ACS and HUD-USPS ZIP crosswalk data. See our methodology for details. Retrieved and formatted by PlainZIP Editorial.