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  2. ZIP Codes
  3. ZIP Code 59311
Montana (MT)Carter County406

ZIP Code 59311 — Alzada, MT

Carter County

Compare

143

Population

$88K

Median income

per household

4.2%

Poverty rate

What stands out

  • Median household income: $88K.
  • Poverty rate: 4.2% (low poverty; bottom quartile vs US ZIP codes).

Categories vs U.S.

Economy

2 of 3 metrics better than U.S. benchmarks

Median household income

$88K

U.S.

$81K

Per-capita income

$39.2K

U.S.

$45K

Housing stress

Income distribution

Share of households by income bracket (ACS).

< $50k
27.0%
$50–100k
52.7%
$100–200k
20.3%
$200k+
0.0%

Health

3 of 6 available metrics better than U.S.

CDC PLACES modeled ZCTA-level estimates (adult prevalence).

Obesity

34.4%

U.S.

33.3%

Diabetes

11.1%

U.S.

12.0%

Current smoking

16.8%

U.S.

13.1%

Connectivity

1 of 3 metrics better than U.S.

Best available speed

1,000Mbps

Gigabit speeds reported

100+ Mbps coverage

48.9%

U.S.

85.3%

Gigabit ready

39.7%

U.S.

8.6%

5G available

7.5%

U.S.

77.4%

Learning

Education metrics come from ACS 5-year estimates for ZIP Code Tabulation Areas (ZCTAs).

Bachelor's degree+ (age 25+)

13.9%

U.S.

35.7%

ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as noise.

Map

ZIP 59311

Alzada, MT

Population

143

Area

808.2 sq mi

Density

0.2/sq mi

Neighbors

577175931459316593175931959324593328272082721
More Details

Census Tracts

1 tracts overlap this ZIP. Hover over segments to explore.

100%

Tract 3

100%

Total tracts: 1Coverage: 100.0%

Representation

U.S. House

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area. Verify by address.

100%

MT-2

100%

Districts: 1Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
CDC PLACES
2025
Broadband
2020-12
Mobile
2025-11-24
Page Updated
2026-02-23

Release schedule and upstream dates: Sources.

Data sources

US Census Bureau (ACS 5-year)HUD USPS ZIP crosswalkUS Census TIGER/Line (geometry inputs)US Census Bureau (ZCTA-to-tract relationship, 2020)US Census Bureau (2020 ZCTA-to-congressional-district relationship file, CD119)CDC PLACES (ZCTA)FCC (Form 477 broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ZIP pages use Census ZIP Code Tabulation Areas (ZCTAs), not USPS delivery routes.
  • Population density is computed as population ÷ land area.
  • Overlap percentages (tracts and districts) are derived from map geometry and are approximate.

Data accuracy & methodology

ZIP pages combine 2020–2024 ACS 5-year ZCTA estimates with other public datasets when available (see Sources). Connectivity metrics use FCC coverage data, not ACS. ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as statistical noise rather than precise changes.