99121 ZIP Code — Danville, WA

Ferry County, Washington

ZIP code 99121 is located in Danville, Washington, within Ferry County. It covers approximately 52.85 square miles and serves a population of 332 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.

About ZIP code 99121

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $425,000. Owner-occupancy sits near the national average at 75%.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 52 minutes suggests many residents work outside the immediate area.

Educational attainment is high — 47% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Notable community characteristics include disability rates above the national average at 48%.

332

population

52.85

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

99121 ZIP code map

Cities in ZIP code 99121

Below are the cities the US Postal Service accepts for ZIP code 99121. Using any city not on this list may result in mail delivery delays.

City	Status
Danville	Preferred

Nearby ZIP codes

99118 Curlew (8.5 mi) 99160 Orient (11.3 mi) 99150 Malo (12.2 mi)

Demographics updated 05/2026

Population
Total population	332
Population density	6 / sq mi
State FIPS	53
County FIPS	019

Geography
Land area	52.85 sq mi
Water area	0.01 sq mi
Latitude	48.9431
Longitude	-118.4437
Timezone	Pacific (PT)
Area code	509

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.3%	57.8%	31.7%
$50k – $100k	13.4%	23.0%	30.6%
$100k – $200k	33.0%	16.2%	27.1%
Over $200k	6.3%	3.0%	10.6%

Demographics & statistics

332

Population

People per sq mi

50.9

Median age

Median household income

$35,199

Per capita income

$425,000

Median home value

$1,375

Median monthly rent

74.5%

Home ownership

12.0%

Poverty rate

0.0%

Unemployment

105

Housing units

47.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	36	10.8%
18 and over	296	89.2%
65 and over	59	17.8%
Median age	50.9 years

Race & ethnicity

White 83.1%

Two or more races 12.7%

American Indian / Alaska Native 4.2%

Group	Count	%
White	276	83.1%
Two or more races	42	12.7%
American Indian / Alaska Native	14	4.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.3%	57.8%	31.7%
$50k – $100k	13.4%	23.0%	30.6%
$100k – $200k	33.0%	16.2%	27.1%
Over $200k	6.3%	3.0%	10.6%

Under $10k 5.7%

$10k–$15k 13.2%

$15k–$25k 6.6%

$25k–$35k 9.4%

$35k–$50k 6.6%

$50k–$75k 4.7%

$75k–$100k 14.2%

$100k–$150k 2.8%

$150k–$200k 34.0%

$200k+ 2.8%

Range	% of households
Under $10k	5.7%
$10k–$15k	13.2%
$15k–$25k	6.6%
$25k–$35k	9.4%
$35k–$50k	6.6%
$50k–$75k	4.7%
$75k–$100k	14.2%
$100k–$150k	2.8%
$150k–$200k	34.0%
$200k+	2.8%
Median income	$0

Housing

Home values

$50k–$100k 5.1%

$100k–$150k 6.3%

$150k–$200k 2.5%

$200k–$300k 21.5%

$300k–$500k 20.3%

$500k–$1M 44.3%

Housing overview

Metric	Value
Median home value	$425,000
Median rent / month	$1,375
Owner occupied	74.5%
Renter occupied	25.5%
Vacant	19.7%
Single-family detached	97.7%
Large apartment buildings	0.0%
Mobile homes	2.3%
Median rooms	6.5
Avg household size (owned)	3.14

Year built

Era	%
2020 or later	0.0%
2010–2019	5.3%
2000–2009	12.9%
1990–1999	35.6%
1980–1989	10.6%
1970–1979	27.3%
1960–1969	0.0%
1950–1959	1.5%
1940–1949	3.0%
1939 or earlier	3.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.3%
1 bedroom	5.3%
2 bedrooms	19.7%
3 bedrooms	32.6%
4 bedrooms	40.2%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	1.9%
1 vehicle	17.9%
2 vehicles	32.1%
3 or more	48.1%

Heating fuel

Fuel type	%
Electricity	68.9%
Propane / LP gas	2.8%
Wood	28.3%

Households & families

Household type	Count	%
Married-couple family	45	42.5%
Cohabiting couple	3	2.8%
Male householder, no spouse	25	23.6%
Female householder, no spouse	33	31.1%
Households with children under 18	23	21.7%
Households with seniors (65+)	49	46.2%
Average household size	3.13

Marital status

Status	Male	Female
Never married	15.5%	16.0%
Married	58.3%	59.6%
Separated	0.0%	3.1%
Widowed	3.6%	4.0%
Divorced	22.6%	17.3%

Education

Less than 9th grade 0.0%

Some HS, no diploma 3.1%

HS graduate 21.8%

Some college, no degree 15.5%

Associate's degree 12.4%

Bachelor's degree 10.4%

Graduate / professional 36.8%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	47.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	13	26.5%
High school	13	26.5%
College / grad school	23	46.9%

Employment

Industry of employment

Education & healthcare 58.7%

Construction 13.2%

Arts, food & hospitality 13.2%

Professional & management 6.6%

Manufacturing 5.8%

Wholesale trade 2.5%

Occupation

Category	%
Management, business & arts	70.2%
Service	19.8%
Sales & office	0.0%
Natural resources & construction	8.3%
Production & transportation	1.7%

Employment type

Type	%
Private sector	27.3%
Government	66.9%
Self-employed	5.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	66.4%
Carpool	31.1%
Public transit	0.0%
Walk	0.0%
Work from home	2.5%
Other means	0.0%
Avg commute (minutes)	52.1

Poverty

All people 12.0%

Under 18 years 8.3%

18 and over 12.5%

Married-couple families 17.8%

Female-led households 23.1%

Income support

Source	% of households
Social Security	47.2%
Retirement income	35.8%
Supplemental Security	6.6%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	32.9%
High blood pressure	34.9%
High cholesterol	34.9%
Diabetes	11.8%
Heart disease	7.9%
Stroke	3.9%
Asthma	11.7%
Arthritis	29.4%
Kidney disease	3.5%
Pulmonary disease	9.0%
Cancer	7.4%

Behavior / access	%
Smoking	19.5%
Binge drinking	16.5%
No physical activity	21.6%
Less than 7 hrs sleep	34.5%
Depression	26.5%
Fair or poor health	17.3%
Poor mental health	15.4%
Poor physical health	13.7%
No health insurance	10.7%
Visited doctor (checkup)	69.0%
Visited dentist	59.0%
Cholesterol screening	88.6%
Teeth loss	15.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	13	4.4%

Disability	%
Any disability	48.2%
Under 18	0.0%
18–64 years	51.1%
65 and over	66.1%

Health insurance coverage

Type	%
Private insurance	64.2%
Public insurance	36.1%
No insurance	4.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	322	97.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	330	99.4%
Born in same state	330	99.4%
Born in different state	216	65.1%
Foreign born	0	0.0%
Naturalized citizen	2	0.6%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	18	5.4%
Polish	9	2.7%
Italian	7	2.1%

Ancestry	Count	%
Arab	6	1.8%
German	5	1.5%

Technology access

Metric	% of households
Computer access	31.9%
Internet access	81.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 99121

What city is ZIP code 99121 in?

ZIP code 99121 is primarily assigned to Danville, Washington.

What county is ZIP code 99121 in?

ZIP code 99121 falls within Ferry County, Washington.

Does ZIP code 99121 have a large retiree population?

47% of households in ZIP code 99121 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 99121?

47% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 99121?

The median home value in ZIP code 99121 is $425,000.

What is the population of ZIP code 99121?

ZIP code 99121 has an estimated population of 332 residents, with a density of 6 people per square mile.

What timezone is ZIP code 99121 in?

ZIP code 99121 observes the PST timezone.