Zip code 21660: Ridgely, Maryland

Q: What city is zip code 21660?

21660 is assigned to Ridgely, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 21660 in?

21660 is in Caroline County, Maryland.

Q: What is the population of 21660?

About 4,132 people live in 21660, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 21660?

The median household income in 21660 is $80,469.

Q: What zip codes are near 21660?

The closest zip codes to 21660 are 21641, 21657, 21639, 21636, 21629.

Residential delivery areaCaroline CountyEastern Time

Population

4,132

Median household income

$80K

U.S. $81K

Median home value

$359K

U.S. $333K

Median rent

$945/mo

U.S. $1,413

Median age

35.6

U.S. 38.9

Land area

33 sq mi

127 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 21660

21660 is a small-town zip code in Ridgely, Maryland (Caroline County), covering 33 sq mi of land. About 4,132 people live here, or 127 per square mile. The median resident is 35.6 years old, compared with 38.9 nationally.

The median household earns $80,469 a year, close to the national median of $80,734. 8.1% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $359,300, or 4.5 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 77% of occupied homes are lived in by their owners, and renters pay a median of $945 a month.

17% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 39.9 minutes each way, and 9% of workers work from home. The most common jobs among working residents are in office and administrative support; construction and repair; and management.

How 21660 compares

Sorted from highest to lowest national percentile

Average commute39.9 min
97th
WeaknessU.S. 26.4 min · MD 31.1 min53rd of 421 in MD
Unemployment rate9.5%
93rd
WeaknessU.S. 5.2% · MD 4.9%31st of 444 in MD
Government workers23.1%
92nd
U.S. 14.5% · MD 22.5%172nd of 444 in MD
Veterans8%
77th
U.S. 6.2% · MD 6.8%168th of 446 in MD
Homeownership rate77.1%
72nd
U.S. 65.2% · MD 67.6%261st of 441 in MD
Residents under 1824%
67th
U.S. 22% · MD 22.2%129th of 446 in MD
Median home value$359,300
55th
U.S. $332,700 · MD $419,900274th of 421 in MD
Median household income$80,469
51st
U.S. $80,734 · MD $103,678320th of 414 in MD
Median earnings per worker$47,931
49th
U.S. $49,666 · MD $61,200344th of 443 in MD
Tech workers2.7%
47th
U.S. 3.8% · MD 6.4%306th of 444 in MD
Residents 65 and older15.6%
43rd
U.S. 17.2% · MD 16.7%300th of 446 in MD
Self-employed workers8.4%
38th
U.S. 10% · MD 8.7%242nd of 444 in MD
Rent-burdened renters46.7%
35th
U.S. 51.1% · MD 51.5%228th of 404 in MD
Per capita income$34,931
34th
U.S. $44,673 · MD $52,979370th of 446 in MD
Poverty rate8.1%
32nd
U.S. 12.5% · MD 9.4%183rd of 441 in MD
Work from home9.4%
31st
U.S. 15.1% · MD 19.3%345th of 444 in MD
Diversity index34.5
29th
U.S. 61.4 · MD 67.7271st of 446 in MD
Broadband access88.7%
27th
U.S. 91% · MD 92.4%322nd of 441 in MD
Median age35.6
25th
U.S. 38.9 · MD 39.4384th of 446 in MD
Housing vacancy3.9%
21st
U.S. 10.1% · MD 7.7%288th of 441 in MD
Income inequality (Gini)0.398
19th
StrengthU.S. 0.483 · MD 0.456239th of 438 in MD
Uninsured rate3.6%
18th
StrengthU.S. 8.4% · MD 6.3%225th of 444 in MD
Median gross rent$945
17th
U.S. $1,413 · MD $1,705307th of 338 in MD
Population density127/sq mi
16th
U.S. 95/sq mi · MD 639/sq mi331st of 446 in MD
Bachelor's degree or higher17.3%
14th
WeaknessU.S. 35.7% · MD 43.4%394th of 445 in MD
Foreign-born residents1.5%
9th
U.S. 14.1% · MD 16.6%374th of 446 in MD
Population4,132
7th
U.S. 334,922,499 · MD 6,206,011253rd of 446 in MD
Healthcare workers5%
4th
U.S. 9.7% · MD 9%350th of 444 in MD

Measure	21660	Caroline	MD	U.S.	National percentile	Rank in MD
Average commuteWeakness	39.9 min	33.4 min	31.1 min	26.4 min	97th	53rd of 421
Unemployment rateWeakness	9.5%	5.7%	4.9%	5.2%	93rd	31st of 444
Government workers	23.1%	17.2%	22.5%	14.5%	92nd	172nd of 444
Veterans	8%	6.2%	6.8%	6.2%	77th	168th of 446
Homeownership rate	77.1%	71.9%	67.6%	65.2%	72nd	261st of 441
Residents under 18	24%	23.9%	22.2%	22%	67th	129th of 446
Median home value	$359,300	$290,100	$419,900	$332,700	55th	274th of 421
Median household income	$80,469	$68,457	$103,678	$80,734	51st	320th of 414
Median earnings per worker	$47,931	$46,014	$61,200	$49,666	49th	344th of 443
Tech workers	2.7%	1.5%	6.4%	3.8%	47th	306th of 444
Residents 65 and older	15.6%	17.3%	16.7%	17.2%	43rd	300th of 446
Self-employed workers	8.4%	9.5%	8.7%	10%	38th	242nd of 444
Rent-burdened renters	46.7%	55.8%	51.5%	51.1%	35th	228th of 404
Per capita income	$34,931	$34,341	$52,979	$44,673	34th	370th of 446
Poverty rate	8.1%	12.2%	9.4%	12.5%	32nd	183rd of 441
Work from home	9.4%	6.9%	19.3%	15.1%	31st	345th of 444
Diversity index	34.5	44.8	67.7	61.4	29th	271st of 446
Broadband access	88.7%	88.3%	92.4%	91%	27th	322nd of 441
Median age	35.6	39.9	39.4	38.9	25th	384th of 446
Housing vacancy	3.9%	7.7%	7.7%	10.1%	21st	288th of 441
Income inequality (Gini)Strength	0.398	0.425	0.456	0.483	19th	239th of 438
Uninsured rateStrength	3.6%	7.3%	6.3%	8.4%	18th	225th of 444
Median gross rent	$945	$1,105	$1,705	$1,413	17th	307th of 338
Population density	127/sq mi	105/sq mi	639/sq mi	95/sq mi	16th	331st of 446
Bachelor's degree or higherWeakness	17.3%	16.2%	43.4%	35.7%	14th	394th of 445
Foreign-born residents	1.5%	6.1%	16.6%	14.1%	9th	374th of 446
Population	4,132	33,669	6,206,011	334,922,499	7th	253rd of 446
Healthcare workers	5%	10%	9%	9.7%	4th	350th of 444

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

17%

5–17

18–24

18%

25–34

11%

35–44

13%

45–54

12%

55–64

10%

65–74

75+

Median age

35.6

Under 18

24%

65 and over

15.6%

Race and ethnicity

White80%
Black7%
Hispanic6%
Asian0.9%
Native American0%
Pacific Islander0%
Other0.9%
Multiracial4%

Diversity index

34.5

U.S. 61.4

Foreign-born

1.5%

U.S. 14.1%

Born in state

72.7%

Language spoken at home (households)

English only

97%

Spanish

Other Indo-European

0.8%

Asian / Pacific

Other

Households

Households: 1,457
Average household size: 2.8
Family households: 68.8%
Married couples: 52.7%
Living alone: 27.1%
Veterans (of adults): 8%
Male / female: 48% / 52%

Income and poverty

Household income distribution

<$25k

12%

$25–50k

21%

$50–75k

14%

$75–100k

17%

$100–150k

19%

$150–200k

10%

$200k+

Median household income

21660

$80,469

Caroline Co.

$68,457

Maryland

$103,678

United States

$80,734

Per capita income

$34,931

U.S. $44,673

Poverty rate

8.1%

U.S. 12.5%

Households earning $150K+

16.7%

U.S. 23%

Income inequality (Gini)

0.398

U.S. 0.483

Housing

Median home value

21660

$359,300

Caroline Co.

$290,100

Maryland

$419,900

United States

$332,700

Median gross rent

21660

$945

Caroline Co.

$1,105

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

87%

2–4 units

5–19 units

20+ units

Mobile home

0.3%

Boat, RV, van

Housing units: 1,516
Owner-occupied: 77.1%
Vacant: 3.9%
Median year built: 1990
Median rooms: 6.2
Renters paying 30%+ of income: 46.7%
Renters paying 50%+ of income: 15.6%
Home value to income: 4.5× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

83%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

10–19

12%

20–29

17%

30–44

28%

45–59

13%

60+

25%

Average commute

39.9 min

U.S. 26.4 min

Unemployment

9.5%

U.S. 5.2%

In labor force

68.4%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Office and admin

16%

Construction and repair

11%

Management

10%

Production

Transportation and moving

Cleaning and personal care

Education

Sales

Healthcare

Food service

Police and fire

Legal and social services

Engineering and science

Business and finance

Computer and math

Farming, fishing and forestry

Arts, media and sports

0.4%

Industries

Retail

17%

Public administration

14%

Health care and social assistance

11%

Construction

Education

Transportation, warehousing and utilities

Other services

Professional and technical services

Manufacturing

Restaurants and hotels

Finance, insurance and real estate

Admin, support and management

Agriculture and mining

Wholesale

Information

Arts and recreation

Median earnings per worker

$47,931

U.S. $49,666

Self-employed

8.4%

U.S. 10%

Government workers

23.1%

U.S. 14.5%

Nonprofit workers

8.9%

U.S. 8.8%

Median earnings by type of work

Type of work	21660	U.S.
Management, business, science and arts	$59,107	$74,888
Service	$37,669	$26,804
Sales and office	$52,806	$40,476
Construction and maintenance	$48,564	$49,199
Production and transportation	$47,893	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

14%

High school

36%

Some college

28%

Associate's

Bachelor's

11%

Graduate

High school graduate or higher: 86.4%
Bachelor's degree or higher: 17.3%
Graduate or professional degree: 6.8%
Households with broadband: 88.7%
Cable, fiber or DSL: 56.9%
No internet access: 10%
Without health insurance: 3.6%
Limited-English households: 0.8%

Geography

City (USPS): Ridgely
State: Maryland
County: Caroline County
Center point: 38.9562° N, 75.8889° W
Land area: 33 sq mi
Water area: under 0.1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Ridgely6% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 21660

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
21641	Hillsboro, MD	3.9 mi	127	$66,875	$254,200
21657	Queen Anne, MD	5.1 mi	1,354	$104,940	$359,500
21639	Greensboro, MD	5.7 mi	4,682	$62,772	$269,400
21636	Goldsboro, MD	6.4 mi	1,097	$73,426	$320,000
21629	Denton, MD	7.6 mi	10,252	$73,956	$334,200
21625	Cordova, MD	8.1 mi	1,766	$83,250	$372,200
21640	Henderson, MD	8.6 mi	1,163	$53,558	$268,500
21617	Centreville, MD	11 mi	10,428	$116,898	$483,700
21644	Ingleside, MD	11 mi	81	—	—
21679	Wye Mills, MD	11 mi	306	$119,821	$521,700
21656	Price, MD · PO box	12 mi	—	—	—
21690	Chestertown, MD · PO box	12 mi	—	—	—

Zip codes like 21660 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 21660

What city is zip code 21660?

21660 is assigned to Ridgely, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 21660 in?

21660 is in Caroline County, Maryland.

What is the population of 21660?

About 4,132 people live in 21660, according to the Census Bureau's American Community Survey.

What time zone is 21660 in?

21660 is in Eastern Time.

What is the median household income in 21660?

The median household income in 21660 is $80,469.

What zip codes are near 21660?

The closest zip codes to 21660 are 21641, 21657, 21639, 21636, 21629.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21660, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.