What city is 45370 in?

45370 is a Spring Valley, OH mailing address. By land area, 2% lies inside Spring Valley; the rest is outside any Census-defined city or community.

What is the population of 45370?

About 2,518 people (±637), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,379.

What is the median household income in 45370?

$122,000 (±$47,785), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 45370?

2 USPS carrier routes with 827 residential and 36 business mailboxes (863 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 45370?

The closest, measured center to center: 45305 (3.6 mi, Bellbrook), 45068 (5.5 mi, Waynesville), 45440 (5.7 mi, Kettering), 45458 (6.6 mi, Centerville), 45301 (7.1 mi, Beavercreek) and 45032 (7.4 mi, Harveysburg).

45370 ZIP Code, Spring Valley, OH

45370 is a ZIP code in Spring Valley, Ohio in Greene County. It covers 17 square miles of land. The closest ZIP codes are 45305, 45068 and 45440. 2,518 people live here in 892 households. With about 151 people per square mile it is lightly settled, and most homes are owner-occupied (90%). Median household income is $122,000, well above the Ohio median of $71,389; the median age is 55.8, older than most ZIP codes.

Quick facts

Mailing city: Spring Valley, OH
County: Greene County
Land area: 17 sq mi
Population: 2,518
Median household income: $122,000
Carrier routes: 2 (827 homes)

Key figures

Measure	Value
Residents	2,518
Households	892
Median household income	$122,000
Income per person	$66,921
Median age	55.8
Homeowners	89.9%
Median home value	$352,000
Median rent	$1,125
Bachelor's degree or higher	44.7%
Average commute (minutes)	27.5
Households with kids under 18	13.9%
Moved in the past year	12.3%
Below the poverty line	8.3%
Broadband internet	88.9%
Speak a non-English language at home	3.7%

Household income

% of households	Value
<$10K	5.0%
$10–15K	7.6%
$15–25K	4.1%
$25–35K	3.0%
$35–50K	4.9%
$50–75K	12.3%
$75–100K	8.7%
$100–150K	11.5%
$150–200K	5.7%
$200K+	36.9%

Age

% of all residents	Value
<10	8.3%
10–19	8.9%
20–24	8.4%
25–34	7.5%
35–44	10.4%
45–54	6.2%
55–64	25.6%
65–74	14.1%
75+	10.8%

Tenure

% of housing units	Value
Owned, with mortgage	56.6%
Owned outright	32.1%
Rented	9.5%
Vacant	1.8%

Type of building

% of housing units	Value
Detached house	85.0%
Townhome	1.2%
2–4 units	0.0%
5–19 units	0.7%
20+ units	0.0%
Mobile / other	13.1%

Businesses in 45370

46 business establishments with 257 employees (ZIP Codes Business Patterns 2023).

Construction: 12
Administrative and Support and Waste Management and Remediation Services: 5
Other Services (except Public Administration): 5
Professional, Scientific, and Technical Services: 4
Transportation and Warehousing: 3
Real Estate and Rental and Leasing: 3

EDDM carrier routes

45370 has 2 USPS carrier routes with 827 residential and 36 business mailboxes. Open the EDDM route map.

Carrier routes in 45370

45370 has 2 USPS carrier routes (2 rural (R)) with 827 residential and 36 business mailboxes. Routes range from 360 homes (R092) to 467 homes (R091); the median route has 414 homes. The Census counted 892 households in 45370 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	2
500–749	0
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 45370 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route R091 — USPS business mailboxes 21, 467 homes
Route R092 — USPS business mailboxes 15, 360 homes

Select these 2 routes on the route map

Every carrier route in 45370

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R091	Rural	467	21	$117,394	—	—	—
R092	Rural	360	15	$117,394	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 45370 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

45305 — Bellbrook city, OH (3.6 mi)
45068 — Waynesville village, OH (5.5 mi)
45440 — Kettering city, OH (5.7 mi)
45458 — Centerville city, OH (6.6 mi)
45301 — Beavercreek city, OH (7.1 mi)
45032 — Harveysburg village, OH (7.4 mi)
45385 — Xenia city, OH (7.6 mi)
45459 — Centerville city, OH (7.6 mi)

Areas that include 45370

Spring Valley, OH ZIP codes — 1 ZIP code
Greene County ZIP codes — 19 ZIP codes
Ohio ZIP code data

Where it ranks

Mail every home in 45370

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 45370, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 45370 in?: 45370 is a Spring Valley, OH mailing address. By land area, 2% lies inside Spring Valley; the rest is outside any Census-defined city or community.
What county is 45370 in?: 45370 is in Greene County.
What is the population of 45370?: About 2,518 people (±637), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,379.
What is the median household income in 45370?: $122,000 (±$47,785), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 45370?: 2 USPS carrier routes with 827 residential and 36 business mailboxes (863 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 45370?: The closest, measured center to center: 45305 (3.6 mi, Bellbrook), 45068 (5.5 mi, Waynesville), 45440 (5.7 mi, Kettering), 45458 (6.6 mi, Centerville), 45301 (7.1 mi, Beavercreek) and 45032 (7.4 mi, Harveysburg).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.