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CITY · 2000 CENSUS

Declo

Idaho · 338 residents · 0.28 sq mi
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The short version

Declo is home to 338 people in Idaho. This skews young, with a median age of 27.1. About 13% of adults have finished a four-year degree. Growth has run 28% since 1990, or 73 more people. The typical home is worth $66,700, having risen by half since 1990. 76% of homes are owner-occupied.

At a glance
Lower income
below the US median
US median: $42,589
Younger
median age 27.1
US median: 35.2
Less educated
13% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

338
+28%since 1990
from 265 in 1990
1990 – 2025
27.1
−4%since 1990
from 28.4 in 1990
US average: 35.2
Land area
0.28 sq mi
Population, 19902024
23532541450359319902000201020202024Declo
2024477
1990201020202024
Age distribution, 2000
Under 511.2%(38)
US avg: 6.8%
5 to 910.4%(35)
US avg: 7.3%
10 to 1410.9%(37)
US avg: 7.3%
15 to 198.6%(29)
US avg: 7.2%
20 to 245.6%(19)
US avg: 6.7%
25 to 3413.9%(47)
US avg: 14.2%
35 to 4412.7%(43)
US avg: 16%
45 to 548.9%(30)
US avg: 13.4%
55 to 648%(27)
US avg: 8.6%
65 to 745.3%(18)
US avg: 6.5%
75 to 842.4%(8)
US avg: 4.4%
85 and over2.1%(7)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$36,528
+58%inflation adjusted, since 1990
from $17,500 in 1990
US average: $42,589
1990 – 2024
$12,884
+58%since 1990
from $8,179 in 1990
US average: $21,522
9.5%
−11.6 ptssince 1990
from 21.1% in 1990
US average: 12.4%
Section 03

Housing

$66,700
+20%inflation adjusted, since 1990
from $42,300 in 1990
US average: $120,530
1990 – 2024
$413
+3%inflation adjusted, since 1990
from $303 in 1990
US average: $602
75.7%
−0.7 ptssince 1990
from 76.4% in 1990
24.3% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic81.5%(216)
Black0%(0)
Hispanic / Latino18.5%(49)
Asian0%(0)
2000
White, non-Hispanic71.9%(243)
Black0%(0)
Hispanic / Latino27.2%(92)
Asian0%(0)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican23.1%(110)
Ancestry
English27.9%(133)
French9%(43)
German7.1%(34)
Swedish4.4%(21)
American3.1%(15)
Irish1.5%(7)
British1.3%(6)
Welsh0.6%(3)
Dutch0.2%(1)
Norwegian0.2%(1)
Section 05

Education

13.5%
+7.3 ptssince 1990
from 6.2% in 1990
US average: 24.4%
High school or higher
69.7%
+16.3 ptssince 1990
from 53.4% in 1990
US average: 80.3%
1.4%
+0.1 ptssince 1990
from 1.4% in 1990
US average: 8.8%
Section 06

Commute & transportation

14.3 min
−24%since 1990
from 18.9 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married24.6%(35)
Married61.3%(87)
Widowed1.4%(2)
Divorced12.7%(18)
Women 15+
Never married14.6%(18)
Married69.1%(85)
Widowed8.9%(11)
Divorced7.3%(9)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

6.1%
−28.5 ptssince 2013
from 34.6% in 2013
US average: 8.4%
65.4%
+0.4 ptssince 2020
from 65.0% in 2020
US average: 54.8%
Direct-purchase
9.2%
−0.8 ptssince 2020
from 10.0% in 2020
US average: 13.8%
10.7%
+0.1 ptssince 2020
from 10.6% in 2020
US average: 18.4%
21.6%
+2.9 ptssince 2020
from 18.7% in 2020
US average: 20.9%
VA health care
0.4%
−1.1 ptssince 2020
from 1.5% in 2020
US average: 2.2%
Any private
73.2%
+2.3 ptssince 2020
from 70.9% in 2020
US average: 67.1%
Any public
31.0%
+1.9 ptssince 2020
from 29.1% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)66.7%(4)
US avg: 26.4%
Gulf War (1990s)0%(0)
US avg: 24.3%
Vietnam era33.3%(2)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%

Share of the 6 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Declo, Idaho?

Declo, Idaho has about 338 residents according to the 2000 Census.

What is the median household income in Declo, Idaho?

The typical household in Declo, Idaho earns about $36,528 a year. Half of households make more than that, and half make less.

Is Declo, Idaho expensive?

In Declo, Idaho, the median home is worth about $66,700, and the typical rent is about $413 a month.

How educated are people in Declo, Idaho?

About 13.5% of adults age 25 and over in Declo, Idaho hold a bachelor's degree or higher.

What is the poverty rate in Declo, Idaho?

About 9.5% of people in Declo, Idaho live below the federal poverty line.

Has Declo, Idaho grown since 1990?

Yes, Declo, Idaho has grown since 1990. The population has added about 73 residents, a change of about 28 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →