Fort Sill, OK · standard
ZIP Code 73503
Comanche County, Oklahoma - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 10,996
- 50/sq mi Moderate-density area
- $60,859
- Median income Below-median income area
- 32.2%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Fort Sill pairs a below-median household income, in a rural, renter-heavy area.
- 30th pct
- household income, US ZIPs
- 50
- people per sq mi
- 0%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 73503 against every reporting US ZIP.
ZIP code 73503 is a mid-sized community (a standard USPS delivery area) in Fort Sill, Comanche County, Oklahoma, home to 10,996 residents across 218.2 square miles, a density of 50 people per square mile, in the Chicago time zone.
ZIP 73503 reports a modest median household income of $60,859 (3% below the average Oklahoma ZIP), while per-capita income is $23,318. The poverty rate is 8.4%, with unemployment at 1.0%; those measures add context to the income figure. The ACS does not report a median home value for this ZIP, so housing cost context is limited to the available tenure and rent fields.
A solid share of residents have a four-year degree: 32.2% of adults hold a bachelor's degree or higher, the median age is 21.7, and the average commute is -. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Comanche County, so 73503 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 73503
Top 5 sectors by establishment count in Fort Sill, OK
Which industries have the most business establishments in ZIP 73503.
- Professional, scientific, and technical services
Professional, scientific, and technical services
11 establishments
- Other services (except public administration)
Other services (except public administration)
10 establishments
- Retail trade
Retail trade
8 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
7 establishments
- Health care and social assistance
Health care and social assistance
5 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 73503, Fort Sill, OK · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
10,996
Population
218.2
Area (sq mi)
50
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 73503?
21.7
Median Age
60.9%
Male
39.1%
Female
5.5%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$60,859
Median Household Income
-3% vs state ZIP avg
$23,318
Per Capita Income
8.4%
Poverty Rate
1.0%
Unemployment Rate
How ZIP 73503 ranks among Oklahoma ZIPs
Fort Sill, OK household income vs. every Oklahoma ZIP code
Median household income among 616 reporting Oklahoma ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$60,859 Top 44% higher than 56% of 616 Oklahoma ZIPs
Each bar is a $20K-wide band; taller bars hold more Oklahoma ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,848housing units
1,848
Total Housing Units
1,755
Occupied Units
93
Vacant Units
3.82
Avg Household Size
Occupancy Type
$1,228
Median Rent
1995
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 53 business establishments in ZIP 73503, employing approximately 1,321 people with a combined annual payroll of $99,309,000.
53
Businesses
1,321
Employees
$99.3M
Annual Payroll
7
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 11 | 20.8% |
| Other services (except public administration) | 10 | 18.9% |
| Retail trade | 8 | 15.1% |
| Administrative and support and waste management and remediation services | 7 | 13.2% |
| Health care and social assistance | 5 | 9.4% |
| Finance and insurance | 3 | 5.7% |
| Educational services | 3 | 5.7% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 73503 vs 73557 →
ZIP 73503 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 73505
Lawton (73505)
49,809 residents
- 73507
Lawton (73507)
22,847 residents
- 73503 10,996
Fort Sill (73503)
10,996 residents
- 73527 5,184
Cache (73527)
5,184 residents
- 73557 427
Medicine Park (73557)
427 residents
What this shows Among its immediate neighbors, ZIP 73503 ranks #3 by population - useful context the national average alone can't give.
ZIP 73503 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 73557
Medicine Park (73557)
$118,056 median income
- 73527
Cache (73527)
$74,526 median income
- 73507
Lawton (73507)
$62,132 median income
- 73503
Fort Sill (73503)
$60,859 median income
- 73505
Lawton (73505)
$58,272 median income
What this shows By household income, ZIP 73503 ranks #4 of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 73503, both outside OK so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (10,996 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Comanche County
Related Areas
Frequently Asked Questions
What county is ZIP code 73503 in?
ZIP code 73503 (Fort Sill) is located in Comanche County, Oklahoma. Comanche County contains multiple ZIP codes, see the full list at /counties/comanche-ok.
What is the population of ZIP code 73503?
ZIP code 73503 in Fort Sill, OK has a population of 10,996 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 73503?
The median household income in ZIP 73503 is $60,859, which is 20% below the national average of $76,288.
What is the demographic makeup of ZIP 73503?
The largest racial group in ZIP 73503 is White at 60.3%. Hispanic or Latino residents make up 21.3% of the population.
How many businesses are in ZIP code 73503?
ZIP code 73503 has 53 business establishments employing approximately 1,321 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 73503?
The top industries by establishment count in ZIP 73503 are: Professional, scientific, and technical services (11), Other services (except public administration) (10), Retail trade (8). There are 7 industry sectors represented in total.
What is the education level in ZIP code 73503?
In ZIP code 73503, 56.2% of residents aged 25+ have a high school diploma or higher, and 32.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the poverty rate in ZIP code 73503?
The poverty rate in ZIP code 73503 is 8.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 73503's numbers, next.
- See how ZIP 73503 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Fort Sill, OK ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.