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Lewis and Clark County, Montana ZIP code demographics

12 ZIP Code Tabulation Areas in Lewis and Clark County, Montana. The population-weighted median household income is about $80,743, the median home value about $394,704, and 70.7% of occupied homes are owner-occupied.

12
ZIP codes
76K
Population
53
Data points

Lewis and Clark County at a glance

$80,743
Median household income
$394,704
Median home value
42.3
Median age
70.7%
Owner-occupied
35,619
Housing units

Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.

Top 5 Lewis and Clark County ZIP codes by median household income
#ZIPCityPopulationHomeowner %Median HH $
159640Marysville16074.1%$99,167
259602Helena30,75484.1%$92,985
359635East Helena8,29282.8%$83,740
459421Cascade2,06986.2%$78,125
559601East Helena31,72855.8%$72,290
Top 5 Lewis and Clark County ZIP codes by population
#ZIPCityPopulationHomeowner %Median HH $
159601East Helena31,72855.8%$72,290
259602Helena30,75484.1%$92,985
359635East Helena8,29282.8%$83,740
459421Cascade2,06986.2%$78,125
559639Lincoln1,02187%$57,778
Top 5 Lewis and Clark County ZIP codes by Homeowner GDP
#ZIPCityPopulationHomeowner %Median HH $Homeowner GDP
159602Helena30,75484.1%$92,985$913.7M
259601East Helena31,72855.8%$72,290$604.4M
359635East Helena8,29282.8%$83,740$234.4M
459421Cascade2,06986.2%$78,125$65.2M
559639Lincoln1,02187%$57,778$28.1M

Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.

Densest: 59625 (Helena) at 7,321 people/sq mi. Least dense: 59648 (Craig) at 1 people/sq mi.

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