23509 2: Demographics, Standards & Technical Specifications (2025)

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The identifier “23509 2“ operates at two distinct intersections: as ZIP Code 23509 in Norfolk, Virginia, and as a reference point in industrial standards governing mechanical engineering and naval specifications. This numerical designation carries weight in urban planning circles, where it marks a dense 3-square-mile corridor housing 4,430 residents per square mile, and in manufacturing facilities, where it signals compliance with ISO bevel gear calculations or MIL-DTL corrosion-resistance protocols.

Understanding this dual nature matters because the same digits you’d write on an envelope to reach Norfolk’s Tidewater Region also appear in technical documentation controlling nickel-copper alloy fittings aboard naval vessels.

Whether you’re analyzing demographic shifts in Virginia’s urban core or specifying materials for marine cooling systems, this numerical sequence unlocks distinct datasets with measurable implications for everything from household income trends to gear geometry standards.

Overview of 23509 2: Key Identifiers

Understanding what 23509 represents requires examining its distinct contexts—it’s not just one thing, but several. You’ll find it used as a ZIP code in Virginia, a military specification for metal fittings, and an ISO standard for gear calculations.

Let’s break down where you’ll encounter this identifier and what it means in each setting.

Geographic Location and Area

ZIP Code 23509 sits in Norfolk, VA, at coordinates 36.88°N, 76.26°W, covering 3 square miles of dense urban planning within the Tidewater Region. Regional mapping places you in the Chesapeake-Pamlico Lowlands, where coastal geography shapes local spatial analysis.

With 4,430 residents per square mile, this fully urbanized zone operates in the Eastern Time Zone and uses area codes 757 and 948. The area’s population density is influenced by its urban growth trends.

Classification and Usage Contexts

Beyond geographic information systems, you’ll encounter “23509” across technical classifications that demand precision. This identifier spans ISO gear standards for bevel geometry, military material specs governing nickel-copper alloy fittings, and commercial adhesive codes—each serving distinct industrial applications.

The military specs are outlined in nickel copper alloy standards for fittings and flanges.

Common Industries and Applications

When specification numbers cross industries, you’re working with truly adaptable identifiers.

Marine applications rely on copper-nickel fittings for shipboard cooling systems, while power generation plants specify identical alloys in condenser tubing.

Construction materials and automotive uses leverage double-sided foam tapes for vibration damping and panel bonding.

Meanwhile, gear engineering standards govern mechanical power transmission across aerospace industry standards and industrial manufacturing supplies.

Industry Sector	Primary Application
Marine & Power	Corrosion-resistant heat exchangers
Construction & Automotive	Bonding and sealing assemblies
Mechanical Engineering	Bevel gear geometry calculations

Demographic Characteristics of 23509 2

Understanding who lives in ZIP Code 23509 starts with the numbers that paint a picture of this Norfolk, Virginia community. You’ll find a diverse population with distinct patterns in age, gender, and ethnic background that shape the area’s identity.

Let’s break down the core demographic metrics that define this neighborhood.

Population Size and Density

You’ll find the population statistics for area 23509 reflect moderate urban growth, with approximately 12,900 residents distributed across 2.54 square miles. Population density metrics hover around 5,096 persons per square mile, though some residential patterns show variation—certain census tracts exceed 8,100 while others fall near 4,700.

These density metrics and geographic distribution patterns reveal established urban residential character rather than rapid population trends or demographic shifts.

Age and Gender Distribution

Median age trends in Census Tract 59.02 settle at 38 years, reflecting a balanced demographic profile aligned with both Virginia and national patterns. Gender balance leans slightly female at approximately 50.8 percent, while males comprise 49.2 percent.

Working-age adults dominate the population structure at roughly 63 percent, with children under 18 representing about 22 percent and older adults 65-plus accounting for 15 percent of residents.

Racial and Ethnic Composition

You’ll find racial diversity shaping 23509, where Black or African American residents comprise 45 percent of the population and White residents account for 37 percent. Hispanic or Latino ethnicity reaches approximately 8 percent, while multiracial individuals represent 6–8 percent.

These demographic shifts mirror Norfolk’s near-parity between racial groups, creating a community where cultural identity intersects with socioeconomic impacts and no single majority dominates the landscape.

Socioeconomic Trends in 23509 2

Understanding the economic landscape of ZIP Code 23509 requires examining several key financial indicators that shape daily life for its residents.

You’ll find that income levels, employment patterns, and wealth distribution paint a revealing picture of this Norfolk community.

The data ahead breaks down household earnings, workforce participation, and the economic spectrum from poverty to high-income brackets.

Household and Family Income

You’ll notice that household and family income levels in ZIP 23509 reveal important patterns in financial security and socioeconomic status. Income distribution varies considerably across family structures and demographic groups:

1. Median Household Income stands at approximately $70,715, though estimates range from $60,674 to $68,540 depending on data source
2. Median Family Income reaches $77,411, reflecting stronger financial standings for family units
3. Income Disparities by Race show White households earning mid-$80,000s versus upper-$50,000s for Black households
4. Nonfamily Households report $52,706 median income, substantially below family benchmarks
5. Wage Trends demonstrate recent growth, with Norfolk’s median rising 4.95% from 2022 to 2023

Understanding these income and education connections helps you assess family budgets and economic stability across the area.

Employment and Labor Force Data

You can gauge employment stability through participation and unemployment metrics that reveal workforce health. In Norfolk City, labor force participation stands at 70.25%, with approximately 76.58% of the population employed and an unemployment rate of 4.97%, indicating that one in twenty individuals remains jobless.

Employment rates vary across sectors, with administrative support leading the way, boasting 131 establishments. Other sectors such as accommodation, professional services, and healthcare also contribute significantly, each exceeding 100 locations, thereby driving job creation and fostering workforce diversity.

Labor Market Indicator	23509 / Norfolk City	Comparison Standard
Labor Force Participation Rate	70.25%	Above 69% statewide
Unemployment Rate	6.0% (23509) / 4.97% (city)	VA: 4.2%
Unemployed Veterans	3.9%	Regional variation
Work-from-Home Share	8%	Minority arrangement
Top Unemployed Occupation	Office/Admin Support	189 claimants

Poverty and High-Income Households

Income inequality paints a striking portrait in 23509, where wealth disparities create divergent realities. You’ll find 13.1% of residents living below the poverty line—nearly double Virginia’s 6.8% rate—while 9.7% of households earn above $200,000, exceeding Norfolk’s citywide 7.1%. The median household income of $35,184 underscores limited economic mobility and pronounced social stratification, leaving many demographics without financial security despite nearby affluence.

ZIP code 23509 shows stark wealth gaps: 13.1% in poverty, 9.7% earning over $200,000, and a median income of just $35,184

1. Poverty persists at 13.1%, affecting one in eight households struggling for basic needs
2. Median income sits at $35,184, barely meeting the $30,000–$55,000 local affordability threshold
3. High earners comprise 9.7%, creating visible wealth disparities within the same neighborhoods
4. Economic gains remain uneven, with financial security concentrated among top-income households

Education and Community Health Statistics

Education and health data paint a clearer picture of community strengths and challenges in ZIP code 23509. You’ll find meaningful gaps when you compare local attainment rates to state benchmarks, and these differences carry real weight for residents managing daily life.

The following sections break down educational credentials, school demographics, and health coverage patterns that shape opportunity and well-being in this area.

Educational Attainment Levels

Educational attainment significantly influences career paths and median income among the approximately 9,106 adults aged 25 and over in ZIP code 23509. Academic achievement varies widely, with 29.49% holding bachelor’s or graduate degrees—a figure slightly below Virginia’s state average of 36.27%. Educational equity remains a pressing concern, as 10.73% of the population lacks high school credentials, potentially limiting student outcomes and college readiness for future generations.

Educational Level	Population Share
High school graduate	26.04%
Some college	33.80%
Bachelor’s degree	18.49%
Graduate degree	11.00%

The correlation between education and housing stability is evident. Homeownership rates increase significantly with higher educational attainment, rising from 33.7% among those without high school diplomas to 78.7% among bachelor’s degree holders. This trend underscores the role of education in fostering economic security.

Public School Demographics

Student enrollment in Norfolk City Public Schools, which covers 23509, totals approximately 26,800–26,900 students with a favorable 13:1 student–teacher ratio. Minority enrollment reaches 80%, far exceeding Virginia’s 56% average.

Academic performance varies by demographics: White students achieve 93% proficiency, while Black students—representing 57% of enrollment—show 56% proficiency, highlighting persistent equity gaps.

Racial/Ethnic Group	District Enrollment Share	Proficiency Rate
Black students	57%	56%
White students	20%	93%
Hispanic students	14–15%	76%
Two or more races	7%	80%

Health Insurance Coverage and Poverty Rates

Beyond academics, you’ll find that economic inequality shapes healthcare access in 23509. With 13.1% of residents living in poverty—above the national 10.6%—many face coverage gaps. An estimated 10.85% lack insurance entirely, exceeding Virginia’s 7.9% rate.

These healthcare disparities reflect broader socioeconomic trends, where poverty and inadequate insurance intertwine, affecting population health outcomes across demographics.

Coverage Metric	23509 Rate
Uninsured residents	10.85%
Private coverage	52.92%
Public coverage	36.24%
Poverty rate	13.1%

Industrial Standards: 23509 2 Specifications

When you’re working with technical documentation or engineering projects, you’ll encounter industrial standards tied to the 23509 designation—particularly ISO 23509 and MIL-DTL-23509G. These specifications govern everything from bevel gear calculations to nickel-copper alloy fittings, giving you the precision and consistency you need in manufacturing environments.

Here’s what you should know about these standards, their real-world applications, and how to access the documentation you need.

Overview of Relevant Standards (ISO, MIL-DTL)

Precision matters in Standard Compliance—especially when you’re traversing technical specifications like MILDTL23509G and ISO frameworks. These industrial standards set the regulatory frameworks for material properties, dimensional tolerances, and quality assurance.

Whether you’re working under Naval Sea Systems Command or broader Military Specifications, understanding how these documents define requirements is key to ensuring reliability and safety in demanding environments.

Applications in Manufacturing and Engineering

These industrial standards guide real-world engineering calculations and manufacturing process control across multiple sectors. You’ll find ISO 23509 shaping gear design for transmission systems in compressors and pumps, while MIL-DTL-23509G defines material science requirements for marine piping using nickel-copper alloys:

• Seawater cooling circuits in power plants and naval vessels
• Condenser tube bundles in desalination facilities
• High-strength pump components and valve assemblies in industrial automation

Document Access and Search Methods

Finding technical documentation requires understanding how digital repositories control access and organize files. You’ll navigate systems that enforce role-based access controls while metadata standards enable rapid document retrieval through search algorithms tied to information security protocols.

Search Method	Data Type	Primary Use
Catalog query	Technical documentation	ISO/MIL standards
Geographic information filters	Census data	Demographic analysis
Metadata fields	Statistical research	Population reports
Controlled indexing	Engineering specs	Manufacturing guidance

Engineering libraries and standards platforms let you locate specifications by designation, subject, or issuing body—though subscription access often applies.

Technical Aspects: Bevel Gear Calculations

When you’re working with bevel gears under ISO 23509-1, the calculations aren’t something you can skip or simplify. These methods give you the precise measurements and rating factors you need for straight, helical, spiral bevel, zerol, and hypoid gears.

Here’s what you’ll need to focus on to get your gear geometry right.

Sample Calculation Methods

You’ll find that standardized bevel gear design starts with fundamental inputs: module, tooth counts, shaft angle, and face width. Calculation tools systematically compute cone distance and pitch angles through trigonometric relationships, often requiring 20+ sequential equations.

Online calculators and AGMA-based gear geometry software accelerate this workflow, enforcing constraints like limiting face width to one-third of cone distance to maintain proper tooth strength across the mesh.

Relevant Factors (Addendum, Deddendum, Depth)

Your bevel gear designs hinge on three defining dimensions that control tooth form and mesh quality. Tooth geometry directly determines gear rating, load capacity, and contact patterns in both spiral bevel and hypoid gear systems:

1. Addendum — usually 1.0× module, sets the working surface above the pitch cone
2. Dedendum — around 1.25× module, provides root clearance
3. Whole depth — sum of both, often 2.25× module under AGMA standards
4. Working depth — controls engagement depth for mesh optimization
5. Clearance — prevents tip-root interference during bevel calculations

Proper gear depth analysis ensures strength and durability.

Applicable Gear Types and Geometry

You’ll encounter four core gear types within the unified ANSI/AGMA ISO 23509 framework, each defined by distinct conical parameters and spiral geometry. The standard treats hypoid designs as the general case, deriving straight and spiral bevel gear geometry as zero-offset variants, ensuring consistent gear meshing and tooth form across applications.

Gear Type	Axis Configuration	Primary Applications
Straight bevel	Intersecting, 90°	Low-speed indexing
Spiral bevel	Intersecting, smooth mesh	Vehicle differentials
Zerol	Intersecting, zero spiral center	Intermediate torque
Hypoid gear	Offset, non-intersecting	Compact drivelines
Generated pinion	Offset-compatible	Universal gear rating

Hypoid designs permit off-axis mounting, enlarging pinion diameter and improving contact area for enhanced load distribution in bevel gear systems.

Product and Material Details Linked to 23509 2

When you look beyond demographics and technical standards, you’ll find practical materials and products that carry the 23509 designation. These range from specialized industrial components to everyday adhesive materials used across manufacturing sectors.

Let’s examine the key products and business applications that connect to this classification.

Nickel-Copper Alloy Fittings and Flanges

You’ll encounter nickel-copper alloy fittings and flanges—often 90-10 (UNS C70600) or 70-30 (UNS C71500)—primarily in marine and industrial piping systems where corrosion resistance is non-negotiable. These military fittings and flanges excel in seawater service, with 90-10 alloy composition averaging 10% nickel and 1–2% iron, while 70-30 grades contain roughly 30% nickel for higher-duty applications.

• Material Properties: 90-10 alloys deliver tensile strength around 45,000 psi; 70-30 grades reach 55,000–60,000 psi
• Welding Techniques: Butt-welding fittings comply with ANSI B16.9 and NAVSEA standards for continuous system integration
• Flange Designs: Weld neck, slip-on, and composite configurations suit diverse copper alloy applications in condensers and heat exchangers

Adhesive Foam Tape Specifications

You’ll select double coated foam tape based on substrate, thickness, and adhesive properties suited to your foam tape applications.

PE foam constructions generally range 0.4–3 mm, while urethane variants deliver 0.8 mm nominal thickness with acrylic adhesive materials and technologies for high shear in bonding techniques.

Material selection considers closed-cell density—around 288–320 kg/m³—and coating technologies that meet peel requirements per ASTM D3330.

Business and Industrial Establishments

Beyond adhesive foam tape specifications, you’ll encounter broad establishment dynamics shaping economic development. Between March 2022 and March 2023, approximately 1.3 million U.S. establishments opened while 1.1 million closed—net growth reflecting economic indicators across manufacturing process sectors.

Global markets drove industrial trends through roughly 8.4 million employer businesses, with labor policies and industrial standards influencing economic growth in business and industrial adhesives applications.

Frequently Asked Questions (FAQs)