Fort Sill ZIP Codes — Comanche County, OK

There is one unique ZIP code in Fort Sill, Oklahoma and it is 73503. Area code: 580.

ZIP codes

74.19

sq mi land

0.13

sq mi water

580

area code

Fort Sill, OK ZIP code map

About Fort Sill, OK

Fort Sill, Oklahoma, is a prominent military installation and community known for its historical significance. It is situated within Comanche County, serving as a vital hub for the U.S. Army and hosting many military families. The city offers a unique blend of military culture, local history, and a thriving community spirit.

Location & geography

Geographically, Fort Sill is located in southwestern Oklahoma, nestled near the city of Lawton, which is about 7 miles to the west. The area is characterized by a land area of 148.37 square miles and a water area of 0.25 square miles, providing a mix of arid and scenic landscapes. Surrounding cities include Cache, approximately 10 miles to the east, and Elgin, roughly 12 miles to the northeast.

Community & economy

The community around Fort Sill is deeply influenced by its military presence, fostering a strong sense of camaraderie among residents. The local economy revolves around military operations, but there are also industries such as retail, healthcare, and education that support daily life. Residents enjoy various recreational activities, local events, and cultural festivals that celebrate both military traditions and community values.

Transportation

Transportation options in Fort Sill include access to major highways such as U.S. Route 277 and U.S. Route 62, making travel convenient for commuting and leisure. The nearest commercial airport is Lawton-Fort Sill Regional Airport, which is approximately 8 miles away, providing both regional and national flight options. Public transit options may be limited, but the community is well-connected by road networks.

History

Fort Sill was founded in 1869 as a military outpost, and it has since played a crucial role in U.S. Army training and operations. Over the years, it has been a central location for various military campaigns and has evolved to include vital educational institutions. Notable events, such as the establishment of the Field Artillery School, have shaped its history and significance.

Did you know?

One little-known fact about Fort Sill is that it is home to the only Native American Museum in the United States, preserving the rich heritage of Native American peoples. Additionally, the fort was designated a National Historic Landmark in 1960 due to its extensive history and contributions to military operations in the region.

ZIP codes for Fort Sill, OK (1)

ZIP code	City	County	Map
73503	Fort Sill	Comanche	View map

Demographics & statistics

11,528

Population

20.8

Median age

$52,215

Median household income

$20,414

Per capita income

Median home value

$1,246

Median monthly rent

0.0%

Home ownership

9.1%

Poverty rate

4.7%

Unemployment

Housing units

30.2%

Bachelor's or higher

Age distribution

Male Female

855

Under 5

524

697

5–9

427

389

10–14

238

1,226

15–19

752

1,651

20–24

1,013

1,622

25–34

995

457

35–44

281

136

45–54

55–59

60–64

← Male

Female →

Age summary

Group	Count	%
Under 18	3,475	30.1%
18 and over	8,053	69.9%
65 and over	0	0.0%
Median age	20.8 years

Race & ethnicity

White 60.3%

Black or African American 15.2%

Two or more races 12.6%

Hispanic or Latino 5.2%

Asian 3.6%

Other race 1.9%

American Indian / Alaska Native 0.9%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
White	7,332	60.3%
Black or African American	1,847	15.2%
Two or more races	1,534	12.6%
Hispanic or Latino	626	5.2%
Asian	436	3.6%
Other race	236	1.9%
American Indian / Alaska Native	114	0.9%
Native Hawaiian / Pacific Islander	29	0.2%

Household income

Under $10k 3.9%

$15k–$25k 2.1%

$25k–$35k 10.8%

$35k–$50k 27.0%

$50k–$75k 28.9%

$75k–$100k 8.7%

$100k–$150k 13.7%

$150k–$200k 3.3%

$200k+ 1.7%

Range	% of households
Under $10k	3.9%
$15k–$25k	2.1%
$25k–$35k	10.8%
$35k–$50k	27.0%
$50k–$75k	28.9%
$75k–$100k	8.7%
$100k–$150k	13.7%
$150k–$200k	3.3%
$200k+	1.7%
Median income	$52,215

Housing

Home values

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$1,246
Owner occupied	0.0%
Renter occupied	100.0%
Vacant	3.7%
Single-family detached	22.1%
Large apartment buildings	0.6%
Mobile homes	0.0%
Median rooms	6.4
Avg household size (owned)	0.00

Year built

Era	%
2020 or later	0.0%
2010–2019	19.7%
2000–2009	20.0%
1990–1999	13.6%
1980–1989	6.8%
1970–1979	9.8%
1960–1969	5.7%
1950–1959	5.2%
1940–1949	2.2%
1939 or earlier	16.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.3%
1 bedroom	0.6%
2 bedrooms	1.8%
3 bedrooms	48.8%
4 bedrooms	46.3%
5+ bedrooms	2.2%

Vehicles per household

Vehicles	% of households
No vehicle	0.4%
1 vehicle	28.3%
2 vehicles	60.7%
3 or more	10.7%

Heating fuel

Fuel type	%
Utility gas	33.1%
Electricity	62.1%
Propane / LP gas	2.1%
No fuel used	2.7%

Households & families

Household type	Count	%
Married-couple family	1,421	81.4%
Cohabiting couple	8	0.5%
Male householder, no spouse	131	7.5%
Female householder, no spouse	186	10.7%
Households with children under 18	1,323	75.8%
Households with seniors (65+)	0	0.0%
Average household size	3.81

Marital status

Status	Male	Female
Never married	60.9%	39.0%
Married	36.0%	57.4%
Separated	0.9%	0.4%
Widowed	0.0%	0.0%
Divorced	2.3%	3.2%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.1%

HS graduate 20.5%

Some college, no degree 38.8%

Associate's degree 10.4%

Bachelor's degree 17.4%

Graduate / professional 12.9%

Metric	%
HS diploma or higher	99.9%
Bachelor's or higher	30.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	297	9.8%
Kindergarten	236	7.8%
Elementary school	1,355	44.9%
High school	375	12.4%
College / grad school	753	25.0%

Employment

Industry of employment

Education & healthcare 23.7%

Public administration 22.4%

Retail trade 13.7%

Arts, food & hospitality 6.6%

Other services 6.3%

Professional & management 6.0%

Transportation & utilities 5.8%

Manufacturing 4.9%

Wholesale trade 4.1%

Information 2.8%

Finance & real estate 2.4%

Construction 1.3%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	41.3%
Service	20.5%
Sales & office	23.5%
Natural resources & construction	5.6%
Production & transportation	9.2%

Employment type

Type	%
Private sector	54.9%
Government	38.8%
Self-employed	6.0%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	39.0%
Carpool	3.0%
Public transit	1.8%
Walk	1.5%
Other means	0.0%
Avg commute (minutes)	10.2

Poverty

All people 9.1%

Under 18 years 12.3%

18 and over 6.0%

Married-couple families 5.1%

Female-led households 37.4%

Income support

Source	% of households
Social Security	2.9%
Retirement income	4.5%
Supplemental Security	0.8%
Cash public assistance	1.9%
Food stamps / SNAP	2.4%

Health indicators

Condition	%
High blood pressure	18.9%
High cholesterol	15.3%
Heart disease	1.5%
Stroke	0.9%
Asthma	10.5%
Arthritis	6.9%
Kidney disease	1.1%
Pulmonary disease	2.9%
Cancer	1.1%

Behavior / access	%
Binge drinking	18.6%
No physical activity	24.9%
Less than 7 hrs sleep	37.9%
Fair or poor health	11.3%
Poor mental health	20.0%
Poor physical health	6.9%
No health insurance	21.9%
Visited doctor (checkup)	68.0%
Visited dentist	51.6%
Cholesterol screening	72.2%
Teeth loss	16.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	541	24.1%

Disability	%
Any disability	6.0%
Under 18	3.6%
18–64 years	10.2%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	95.5%
Public insurance	10.8%
Uninsured under 19	1.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	10,149	88.0%
Spanish	414	4.1%
Other Indo-European	195	1.9%
Asian & Pacific Islander	110	1.1%
Other languages	108	1.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	10,970	95.2%
Born in same state	10,597	91.9%
Born in different state	1,140	9.9%
Foreign born	373	3.2%
Naturalized citizen	558	4.8%
Not a US citizen	270	48.4%

Ancestry

Ancestry	Count	%
Italian	1,302	11.3%
Arab	586	5.1%
French	360	3.1%
Polish	195	1.7%

Ancestry	Count	%
English	163	1.4%
German	54	0.5%
Irish	13	0.1%
Norwegian	6	0.1%

Technology access

Metric	% of households
Computer access	15.1%
Internet access	100.0%

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

Frequently asked questions

What ZIP codes does Fort Sill, OK have?

Fort Sill, OK has one ZIP code: 73503. Each ZIP code serves a distinct delivery area within the city and surrounding region.